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10644843090 = 235750689729
BaseRepresentation
bin10011110100111101…
…10110101001010010
31000110212011001112210
421322132312221102
5133300034434330
64520135532550
7524534446650
oct117236665122
930425131483
1010644843090
114572811192
122090b2a156
13100848712b
1472da5ddd0
154247d78b0
hex27a7b6a52

10644843090 has 32 divisors (see below), whose sum is σ = 29197284480. Its totient is φ = 2433106944.

The previous prime is 10644843031. The next prime is 10644843107. The reversal of 10644843090 is 9034844601.

It is a happy number.

It is a super-2 number, since 2×106448430902 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25344655 + ... + 25345074.

It is an arithmetic number, because the mean of its divisors is an integer number (912415140).

Almost surely, 210644843090 is an apocalyptic number.

10644843090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10644843090 is an abundant number, since it is smaller than the sum of its proper divisors (18552441390).

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

10644843090 is a wasteful number, since it uses less digits than its factorization.

10644843090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50689746.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 10644843090 in words is "ten billion, six hundred forty-four million, eight hundred forty-three thousand, ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 50689729 101379458 152069187 253448645 304138374 354828103 506897290 709656206 760345935 1064484309 1520691870 1774140515 2128968618 3548281030 5322421545 10644843090