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31013250104 = 2320353190471
BaseRepresentation
bin11100111000100010…
…001010010000111000
32222001100220100012202
4130320202022100320
51002003343000404
622125225325332
72145352163534
oct347042122070
988040810182
1031013250104
1112175197911
126016336848
132c03291285
141702c44bc4
15c17a7621e
hex73888a438

31013250104 has 16 divisors (see below), whose sum is σ = 58153006320. Its totient is φ = 15505781760.

The previous prime is 31013250097. The next prime is 31013250109. The reversal of 31013250104 is 40105231013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013250109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67589 + ... + 258059.

It is an arithmetic number, because the mean of its divisors is an integer number (3634562895).

Almost surely, 231013250104 is an apocalyptic number.

It is an amenable number.

31013250104 is a deficient number, since it is larger than the sum of its proper divisors (27139756216).

31013250104 is a wasteful number, since it uses less digits than its factorization.

31013250104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210830 (or 210826 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 31013250104 its reverse (40105231013), we get a palindrome (71118481117).

The spelling of 31013250104 in words is "thirty-one billion, thirteen million, two hundred fifty thousand, one hundred four".

Divisors: 1 2 4 8 20353 40706 81412 162824 190471 380942 761884 1523768 3876656263 7753312526 15506625052 31013250104