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31140103404 = 2233477478411
BaseRepresentation
bin11101000000000110…
…000100010011101100
32222101012121011020010
4131000012010103230
51002233331302104
622150000253220
72151452340324
oct350006042354
988335534203
1031140103404
111222a85a653
126050911210
132c236476b7
141715a26284
15c23c82489
hex7401844ec

31140103404 has 24 divisors (see below), whose sum is σ = 72869646528. Its totient is φ = 10350119440.

The previous prime is 31140103369. The next prime is 31140103411. The reversal of 31140103404 is 40430104113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3735042 + ... + 3743369.

It is an arithmetic number, because the mean of its divisors is an integer number (3036235272).

Almost surely, 231140103404 is an apocalyptic number.

It is an amenable number.

31140103404 is an abundant number, since it is smaller than the sum of its proper divisors (41729543124).

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

31140103404 is a wasteful number, since it uses less digits than its factorization.

31140103404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7478765 (or 7478763 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31140103404 its reverse (40430104113), we get a palindrome (71570207517).

The spelling of 31140103404 in words is "thirty-one billion, one hundred forty million, one hundred three thousand, four hundred four".

Divisors: 1 2 3 4 6 12 347 694 1041 1388 2082 4164 7478411 14956822 22435233 29913644 44870466 89740932 2595008617 5190017234 7785025851 10380034468 15570051702 31140103404