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31453054453044 = 223274671129236729
BaseRepresentation
bin1110010011011001111000…
…01000110100010100110100
311010100212211110000000110100
413021230330020310110310
513110311323414444134
6150521200030554100
76424260003430020
oct711547410642464
9133325743000410
1031453054453044
11a027190294154
12363b990368930
1314720198545b3
147aa49bc25380
15398275a2b999
hex1c9b3c234534

31453054453044 has 144 divisors (see below), whose sum is σ = 91139989449600. Its totient is φ = 8959363181568.

The previous prime is 31453054453043. The next prime is 31453054453061. The reversal of 31453054453044 is 44035445035413.

31453054453044 is a `hidden beast` number, since 3 + 1 + 4 + 5 + 30 + 5 + 44 + 530 + 44 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31453054453043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132746872 + ... + 132983600.

It is an arithmetic number, because the mean of its divisors is an integer number (632916593400).

Almost surely, 231453054453044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31453054453044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45569994724800).

31453054453044 is an abundant number, since it is smaller than the sum of its proper divisors (59686934996556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31453054453044 is a wasteful number, since it uses less digits than its factorization.

31453054453044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238342 (or 238337 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 45.

Adding to 31453054453044 its reverse (44035445035413), we get a palindrome (75488499488457).

The spelling of 31453054453044 in words is "thirty-one trillion, four hundred fifty-three billion, fifty-four million, four hundred fifty-three thousand, forty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 467 934 1129 1401 1868 2258 2802 3269 3387 4203 4516 5604 6538 6774 7903 8406 9807 10161 13076 13548 15806 16812 19614 20322 23709 29421 31612 39228 40644 47418 58842 71127 94836 117684 142254 236729 284508 473458 527243 710187 946916 1054486 1420374 1581729 1657103 2108972 2130561 2840748 3163458 3314206 3690701 4261122 4745187 4971309 6326916 6628412 7381402 8522244 9490374 9942618 11072103 14762804 14913927 18980748 19885236 22144206 29827854 33216309 44288412 59655708 66432618 110552443 132865236 221104886 267267041 331657329 442209772 534534082 663314658 773867101 801801123 994971987 1069068164 1326629316 1547734202 1603602246 1870869287 1989943974 2321601303 2405403369 3095468404 3207204492 3741738574 3979887948 4643202606 4810806738 5612607861 6964803909 7483477148 9286405212 9621613476 11225215722 13929607818 16837823583 22450431444 27859215636 33675647166 67351294332 124813708147 249627416294 374441124441 499254832588 748882248882 873695957029 1123323373323 1497764497764 1747391914058 2246646746646 2621087871087 3494783828116 4493293493292 5242175742174 7863263613261 10484351484348 15726527226522 31453054453044