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31502004104 = 2319207250027
BaseRepresentation
bin11101010101101010…
…100110111110001000
310000022102120121122202
4131111222212332020
51004004003112404
622245525135332
72163435421364
oct352552467610
9100272517582
1031502004104
11123a6072a3a
126131b5a548
132c8060961c
14174bb102a4
15c4591c21e
hex755aa6f88

31502004104 has 16 divisors (see below), whose sum is σ = 62175008400. Its totient is φ = 14922001872.

The previous prime is 31502004103. The next prime is 31502004187. The reversal of 31502004104 is 40140020513.

It is not an unprimeable number, because it can be changed into a prime (31502004103) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 103624862 + ... + 103625165.

It is an arithmetic number, because the mean of its divisors is an integer number (3885938025).

Almost surely, 231502004104 is an apocalyptic number.

It is an amenable number.

31502004104 is a deficient number, since it is larger than the sum of its proper divisors (30673004296).

31502004104 is a wasteful number, since it uses less digits than its factorization.

31502004104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207250052 (or 207250048 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 31502004104 its reverse (40140020513), we get a palindrome (71642024617).

The spelling of 31502004104 in words is "thirty-one billion, five hundred two million, four thousand, one hundred four".

Divisors: 1 2 4 8 19 38 76 152 207250027 414500054 829000108 1658000216 3937750513 7875501026 15751002052 31502004104