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31048740066 = 2319272357369
BaseRepresentation
bin11100111010101001…
…100010110011100010
32222010211200102021210
4130322221202303202
51002041434140231
622132534130550
72146262636031
oct347251426342
988124612253
1031048740066
1112193227a63
1260261b0a56
132c0a739056
141707842718
15c1ac36a46
hex73aa62ce2

31048740066 has 16 divisors (see below), whose sum is σ = 65365768800. Its totient is φ = 9804865248.

The previous prime is 31048740053. The next prime is 31048740067. The reversal of 31048740066 is 66004784013.

It is not an unprimeable number, because it can be changed into a prime (31048740067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136178571 + ... + 136178798.

It is an arithmetic number, because the mean of its divisors is an integer number (4085360550).

Almost surely, 231048740066 is an apocalyptic number.

31048740066 is an abundant number, since it is smaller than the sum of its proper divisors (34317028734).

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

31048740066 is a wasteful number, since it uses less digits than its factorization.

31048740066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272357393.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 31048740066 in words is "thirty-one billion, forty-eight million, seven hundred forty thousand, sixty-six".

Divisors: 1 2 3 6 19 38 57 114 272357369 544714738 817072107 1634144214 5174790011 10349580022 15524370033 31048740066