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16811107434 = 23211227374029
BaseRepresentation
bin11111010100000010…
…10010010001101010
31121101121001202000200
433222001102101222
5233412120414214
611420052213030
71133411025012
oct175201222152
947347052020
1016811107434
117147482920
12331200a176
13177bb27a64
14b5698cc42
15685d13d09
hex3ea05246a

16811107434 has 48 divisors (see below), whose sum is σ = 39910497120. Its totient is φ = 5071819680.

The previous prime is 16811107409. The next prime is 16811107447. The reversal of 16811107434 is 43470111861.

It is a super-2 number, since 2×168111074342 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142069 + ... + 231960.

It is an arithmetic number, because the mean of its divisors is an integer number (831468690).

Almost surely, 216811107434 is an apocalyptic number.

16811107434 is an abundant number, since it is smaller than the sum of its proper divisors (23099389686).

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

16811107434 is a wasteful number, since it uses less digits than its factorization.

16811107434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374275 (or 374272 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 16811107434 in words is "sixteen billion, eight hundred eleven million, one hundred seven thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 227 454 681 1362 2043 2497 4086 4994 7491 14982 22473 44946 374029 748058 1122087 2244174 3366261 4114319 6732522 8228638 12342957 24685914 37028871 74057742 84904583 169809166 254713749 509427498 764141247 933950413 1528282494 1867900826 2801851239 5603702478 8405553717 16811107434