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31045799124 = 2233377769219
BaseRepresentation
bin11100111010011110…
…010100110011010100
32222010122011000002000
4130322132110303110
51002040211032444
622132351115300
72146225636614
oct347236246324
988118130060
1031045799124
11121915a942a
126025212b30
132c09c49552
1417072b8a44
15c1a855469
hex73a794cd4

31045799124 has 48 divisors (see below), whose sum is σ = 82664500800. Its totient is φ = 10068906528.

The previous prime is 31045799101. The next prime is 31045799131. The reversal of 31045799124 is 42199754013.

It is a self number, because there is not a number n which added to its sum of digits gives 31045799124.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3880614 + ... + 3888605.

It is an arithmetic number, because the mean of its divisors is an integer number (1722177100).

Almost surely, 231045799124 is an apocalyptic number.

It is an amenable number.

31045799124 is an abundant number, since it is smaller than the sum of its proper divisors (51618701676).

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

31045799124 is a wasteful number, since it uses less digits than its factorization.

31045799124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7769269 (or 7769261 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 31045799124 in words is "thirty-one billion, forty-five million, seven hundred ninety-nine thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 37 54 74 108 111 148 222 333 444 666 999 1332 1998 3996 7769219 15538438 23307657 31076876 46615314 69922971 93230628 139845942 209768913 279691884 287461103 419537826 574922206 839075652 862383309 1149844412 1724766618 2587149927 3449533236 5174299854 7761449781 10348599708 15522899562 31045799124