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10688851813 = 172924715907
BaseRepresentation
bin10011111010001101…
…01110111101100101
31000120220221221011111
421331012232331211
5133342321224223
64524351105021
7525610512163
oct117506567545
930526857144
1010688851813
11459563a632
1220a3812171
1310146254b3
14735838233
154285cc30d
hex27d1aef65

10688851813 has 24 divisors (see below), whose sum is σ = 11971469952. Its totient is φ = 9505934592.

The previous prime is 10688851783. The next prime is 10688851829. The reversal of 10688851813 is 31815888601.

It is a happy number.

It is not a de Polignac number, because 10688851813 - 25 = 10688851781 is a prime.

It is a super-2 number, since 2×106888518132 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10688801813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 664006 + ... + 679912.

It is an arithmetic number, because the mean of its divisors is an integer number (498811248).

Almost surely, 210688851813 is an apocalyptic number.

It is an amenable number.

10688851813 is a deficient number, since it is larger than the sum of its proper divisors (1282618139).

10688851813 is a wasteful number, since it uses less digits than its factorization.

10688851813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16029 (or 16000 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 49.

The spelling of 10688851813 in words is "ten billion, six hundred eighty-eight million, eight hundred fifty-one thousand, eight hundred thirteen".

Divisors: 1 17 29 47 493 799 841 1363 14297 15907 23171 39527 270419 461303 671959 747629 7842151 12709693 13377787 21681241 227422379 368581097 628755989 10688851813