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10505412215 = 531373918127
BaseRepresentation
bin10011100100010101…
…11101111001110111
31000010010210020100022
421302022331321313
5133003341142330
64454235235355
7521222346644
oct116212757167
930103706308
1010505412215
114501038761
1220522a8b5b
13cb5618b5c
14719326dcb
15417444ae5
hex2722bde77

10505412215 has 16 divisors (see below), whose sum is σ = 13017354240. Its totient is φ = 8130598560.

The previous prime is 10505412167. The next prime is 10505412241. The reversal of 10505412215 is 51221450501.

It is not a de Polignac number, because 10505412215 - 216 = 10505346679 is a prime.

It is a super-2 number, since 2×105054122152 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570482 + ... + 588608.

It is an arithmetic number, because the mean of its divisors is an integer number (813584640).

Almost surely, 210505412215 is an apocalyptic number.

10505412215 is a deficient number, since it is larger than the sum of its proper divisors (2511942025).

10505412215 is a wasteful number, since it uses less digits than its factorization.

10505412215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21902.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 10505412215 its reverse (51221450501), we get a palindrome (61726862716).

The spelling of 10505412215 in words is "ten billion, five hundred five million, four hundred twelve thousand, two hundred fifteen".

Divisors: 1 5 31 155 3739 18127 18695 90635 115909 561937 579545 2809685 67776853 338884265 2101082443 10505412215