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31110033230320 = 24511325031087663
BaseRepresentation
bin1110001001011010111100…
…11110101100100111110000
311002011002102201001102202211
413010231132132230213300
513034201322001332240
6150055430231421504
76360424424230132
oct704553636544760
9132132381042684
1031110033230320
119a047667a3530
1235a53bb224894
131448881a6b0a5
14797a3b187052
1538e39b4edbea
hex1c4b5e7ac9f0

31110033230320 has 80 divisors (see below), whose sum is σ = 78908857224192. Its totient is φ = 11312380903680.

The previous prime is 31110033230197. The next prime is 31110033230347. The reversal of 31110033230320 is 2303233001113.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×311100332303202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 31110033230291 and 31110033230300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28058809 + ... + 29146471.

Almost surely, 231110033230320 is an apocalyptic number.

It is an amenable number.

31110033230320 is an abundant number, since it is smaller than the sum of its proper divisors (47798823993872).

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

31110033230320 is a wasteful number, since it uses less digits than its factorization.

31110033230320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120190 (or 1120184 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31110033230320 its reverse (2303233001113), we get a palindrome (33413266231433).

The spelling of 31110033230320 in words is "thirty-one trillion, one hundred ten billion, thirty-three million, two hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 32503 65006 130012 162515 260024 325030 357533 520048 650060 715066 1087663 1300120 1430132 1787665 2175326 2600240 2860264 3575330 4350652 5438315 5720528 7150660 8701304 10876630 11964293 14301320 17402608 21753260 23928586 28602640 43506520 47857172 59821465 87013040 95714344 119642930 191428688 239285860 478571720 957143440 35352310489 70704620978 141409241956 176761552445 282818483912 353523104890 388875415379 565636967824 707046209780 777750830758 1414092419560 1555501661516 1944377076895 2828184839120 3111003323032 3888754153790 6222006646064 7777508307580 15555016615160 31110033230320