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10001640246 = 2313128226157
BaseRepresentation
bin10010101000010010…
…01110101100110110
3221211000211222010020
421110021032230312
5130440404441441
64332241510010
7502564353003
oct112411165466
927730758106
1010001640246
114272735394
121b31642306
13c35142c30
146ac46c8aa
153d80d3e66
hex25424eb36

10001640246 has 16 divisors (see below), whose sum is σ = 21541994544. Its totient is φ = 3077427744.

The previous prime is 10001640199. The next prime is 10001640247. The reversal of 10001640246 is 64204610001.

It is a super-2 number, since 2×100016402462 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001640247) 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, 64113001 + ... + 64113156.

It is an arithmetic number, because the mean of its divisors is an integer number (1346374659).

Almost surely, 210001640246 is an apocalyptic number.

10001640246 is an abundant number, since it is smaller than the sum of its proper divisors (11540354298).

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

10001640246 is a wasteful number, since it uses less digits than its factorization.

10001640246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128226175.

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 10001640246 in words is "ten billion, one million, six hundred forty thousand, two hundred forty-six".

Divisors: 1 2 3 6 13 26 39 78 128226157 256452314 384678471 769356942 1666940041 3333880082 5000820123 10001640246