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10645731948 = 2233136777977
BaseRepresentation
bin10011110101000100…
…01111101001101100
31000110220211012211110
421322202033221230
5133300301410243
64520210552020
7524545141245
oct117242175154
930426735743
1010645731948
114573268a85
122091298610
131008708897
1472dc11ccc
15424910e33
hex27a88fa6c

10645731948 has 48 divisors (see below), whose sum is σ = 25711529984. Its totient is φ = 3424705920.

The previous prime is 10645731881. The next prime is 10645731949. The reversal of 10645731948 is 84913754601.

It is a super-2 number, since 2×106457319482 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10645731897 and 10645731906.

It is not an unprimeable number, because it can be changed into a prime (10645731949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97536 + ... + 175512.

Almost surely, 210645731948 is an apocalyptic number.

It is an amenable number.

10645731948 is an abundant number, since it is smaller than the sum of its proper divisors (15065798036).

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

10645731948 is a wasteful number, since it uses less digits than its factorization.

10645731948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78382 (or 78380 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 10645731948 in words is "ten billion, six hundred forty-five million, seven hundred thirty-one thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 367 372 734 1101 1468 2202 4404 11377 22754 34131 45508 68262 77977 136524 155954 233931 311908 467862 935724 2417287 4834574 7251861 9669148 14503722 28617559 29007444 57235118 85852677 114470236 171705354 343410708 887144329 1774288658 2661432987 3548577316 5322865974 10645731948