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31504906284 = 2233196382139
BaseRepresentation
bin11101010101110101…
…101011100000101100
310000022122001001200220
4131111311223200230
51004010224000114
622250111251340
72163502166505
oct352565534054
9100278031626
1031504906284
11123a7775435
126132b19b50
132c810b45a7
14174c267bac
15c45ce20a9
hex755d6b82c

31504906284 has 24 divisors (see below), whose sum is σ = 73514642880. Its totient is φ = 10501179024.

The previous prime is 31504906273. The next prime is 31504906327. The reversal of 31504906284 is 48260940513.

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 7 ways as a sum of consecutive naturals, for example, 342487 + ... + 424625.

It is an arithmetic number, because the mean of its divisors is an integer number (3063110120).

Almost surely, 231504906284 is an apocalyptic number.

It is an amenable number.

31504906284 is an abundant number, since it is smaller than the sum of its proper divisors (42009736596).

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

31504906284 is a wasteful number, since it uses less digits than its factorization.

31504906284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114109 (or 114107 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 31504906284 in words is "thirty-one billion, five hundred four million, nine hundred six thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 31963 63926 82139 95889 127852 164278 191778 246417 328556 383556 492834 985668 2625408857 5250817714 7876226571 10501635428 15752453142 31504906284