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1020465654460 = 225717231423019
BaseRepresentation
bin11101101100110000111…
…11100010101010111100
310121120000000011101120021
432312120133202222330
5113204403201420320
62100443452301524
7133504042642060
oct16663037425274
93546000141507
101020465654460
1136386029300a
12145933a718a4
13752ca291655
1437568503aa0
151b828313daa
hexed987e2abc

1020465654460 has 48 divisors (see below), whose sum is σ = 2449265495040. Its totient is φ = 349852806720.

The previous prime is 1020465654449. The next prime is 1020465654499. The reversal of 1020465654460 is 644565640201.

It is a super-2 number, since 2×10204656544602 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2200831 + ... + 2623849.

It is an arithmetic number, because the mean of its divisors is an integer number (51026364480).

Almost surely, 21020465654460 is an apocalyptic number.

1020465654460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020465654460 is an abundant number, since it is smaller than the sum of its proper divisors (1428799840580).

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

1020465654460 is a wasteful number, since it uses less digits than its factorization.

1020465654460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440266 (or 440264 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 1020465654460 in words is "one trillion, twenty billion, four hundred sixty-five million, six hundred fifty-four thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 17231 34462 68924 86155 120617 172310 241234 344620 423019 482468 603085 846038 1206170 1692076 2115095 2412340 2961133 4230190 5922266 8460380 11844532 14805665 29611330 59222660 7289040389 14578080778 29156161556 36445201945 51023282723 72890403890 102046565446 145780807780 204093130892 255116413615 510232827230 1020465654460