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10400131206 = 23229108718329
BaseRepresentation
bin10011010111110010…
…10110100010000110
3222211210200101221200
421223321112202012
5132244413144311
64435554523330
7515503441143
oct115371264206
928753611850
1010400131206
11445766a563
122022b96546
13c998766ba
1470935d3ca
1540d09a556
hex26be56886

10400131206 has 48 divisors (see below), whose sum is σ = 23333356800. Its totient is φ = 3343906944.

The previous prime is 10400131187. The next prime is 10400131211. The reversal of 10400131206 is 60213100401.

It is a happy number.

10400131206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 558250 + ... + 576578.

It is an arithmetic number, because the mean of its divisors is an integer number (486111600).

Almost surely, 210400131206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10400131206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11666678400).

10400131206 is an abundant number, since it is smaller than the sum of its proper divisors (12933225594).

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

10400131206 is a wasteful number, since it uses less digits than its factorization.

10400131206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19453 (or 19450 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10400131206 its reverse (60213100401), we get a palindrome (70613231607).

The spelling of 10400131206 in words is "ten billion, four hundred million, one hundred thirty-one thousand, two hundred six".

Divisors: 1 2 3 6 9 18 29 58 87 174 261 522 1087 2174 3261 6522 9783 18329 19566 31523 36658 54987 63046 94569 109974 164961 189138 283707 329922 531541 567414 1063082 1594623 3189246 4783869 9567738 19923623 39847246 59770869 119541738 179312607 358625214 577785067 1155570134 1733355201 3466710402 5200065603 10400131206