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31041510425 = 521241660417
BaseRepresentation
bin11100111010001101…
…111101110000011001
32222010100002010002022
4130322031331300121
51002033111313200
622132115144225
72146144325252
oct347215756031
988110063068
1031041510425
111218a13a252
1260238a5075
132c090a7463
1417068bdb29
15c1a2a9885
hex73a37dc19

31041510425 has 6 divisors (see below), whose sum is σ = 38491472958. Its totient is φ = 24833208320.

The previous prime is 31041510421. The next prime is 31041510473. The reversal of 31041510425 is 52401514013.

It can be written as a sum of positive squares in 3 ways, for example, as 4007902864 + 27033607561 = 63308^2 + 164419^2 .

It is not a de Polignac number, because 31041510425 - 22 = 31041510421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31041510394 and 31041510403.

It is not an unprimeable number, because it can be changed into a prime (31041510421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 620830184 + ... + 620830233.

It is an arithmetic number, because the mean of its divisors is an integer number (6415245493).

Almost surely, 231041510425 is an apocalyptic number.

It is an amenable number.

31041510425 is a deficient number, since it is larger than the sum of its proper divisors (7449962533).

31041510425 is a wasteful number, since it uses less digits than its factorization.

31041510425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241660427 (or 1241660422 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 31041510425 in words is "thirty-one billion, forty-one million, five hundred ten thousand, four hundred twenty-five".

Divisors: 1 5 25 1241660417 6208302085 31041510425