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31113001304 = 23711160931391
BaseRepresentation
bin11100111110011110…
…101011100101011000
32222022022121020010122
4130332132223211120
51002204412020204
622143151332412
72151003101420
oct347636534530
988268536118
1031113001304
1112216529420
126043821108
132c1ab48758
1417121ad480
15c216cc0be
hex73e7ab958

31113001304 has 64 divisors (see below), whose sum is σ = 72779212800. Its totient is φ = 12114028800.

The previous prime is 31113001303. The next prime is 31113001319. The reversal of 31113001304 is 40310031113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113001303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975449 + ... + 1006839.

It is an arithmetic number, because the mean of its divisors is an integer number (1137175200).

Almost surely, 231113001304 is an apocalyptic number.

It is an amenable number.

31113001304 is an abundant number, since it is smaller than the sum of its proper divisors (41666211496).

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

31113001304 is a wasteful number, since it uses less digits than its factorization.

31113001304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33024 (or 33020 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31113001304 its reverse (40310031113), we get a palindrome (71423032417).

The spelling of 31113001304 in words is "thirty-one billion, one hundred thirteen million, one thousand, three hundred four".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 1609 3218 6436 11263 12872 17699 22526 31391 35398 45052 62782 70796 90104 123893 125564 141592 219737 247786 251128 345301 439474 495572 690602 878948 991144 1381204 1757896 2417107 2762408 4834214 9668428 19336856 50508119 101016238 202032476 353556833 404064952 555589309 707113666 1111178618 1414227332 2222357236 2828454664 3889125163 4444714472 7778250326 15556500652 31113001304