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31010124424 = 233876265553
BaseRepresentation
bin11100111000010110…
…001111001010001000
32222001011000112120211
4130320112033022020
51002002042440144
622125034330504
72145313465006
oct347026171210
988034015524
1031010124424
1112173452504
126015289a34
132c02738666
14170266da76
15c1765a034
hex73858f288

31010124424 has 8 divisors (see below), whose sum is σ = 58143983310. Its totient is φ = 15505062208.

The previous prime is 31010124419. The next prime is 31010124433. The reversal of 31010124424 is 42442101013.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20386699524 + 10623424900 = 142782^2 + 103070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×310101244242 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31010124395 and 31010124404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1938132769 + ... + 1938132784.

Almost surely, 231010124424 is an apocalyptic number.

It is an amenable number.

31010124424 is a deficient number, since it is larger than the sum of its proper divisors (27133858886).

31010124424 is a wasteful number, since it uses less digits than its factorization.

31010124424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3876265559 (or 3876265555 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 31010124424 its reverse (42442101013), we get a palindrome (73452225437).

The spelling of 31010124424 in words is "thirty-one billion, ten million, one hundred twenty-four thousand, four hundred twenty-four".

Divisors: 1 2 4 8 3876265553 7752531106 15505062212 31010124424