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16906344354 = 2331571994143
BaseRepresentation
bin11111011111011001…
…00101011110100010
31121122020021021112000
433233230211132202
5234111011004404
611433333344430
71135645361454
oct175754453642
947566237460
1016906344354
117196210819
123339a98116
131795791573
14b654a02d4
1568e377339
hex3efb257a2

16906344354 has 32 divisors (see below), whose sum is σ = 37808970240. Its totient is φ = 5599550736.

The previous prime is 16906344353. The next prime is 16906344401. The reversal of 16906344354 is 45344360961.

16906344354 is a `hidden beast` number, since 1 + 6 + 9 + 0 + 634 + 4 + 3 + 5 + 4 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16906344353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 988594 + ... + 1005549.

It is an arithmetic number, because the mean of its divisors is an integer number (1181530320).

Almost surely, 216906344354 is an apocalyptic number.

16906344354 is an abundant number, since it is smaller than the sum of its proper divisors (20902625886).

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

16906344354 is a wasteful number, since it uses less digits than its factorization.

16906344354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994311 (or 1994305 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 16906344354 in words is "sixteen billion, nine hundred six million, three hundred forty-four thousand, three hundred fifty-four".

Divisors: 1 2 3 6 9 18 27 54 157 314 471 942 1413 2826 4239 8478 1994143 3988286 5982429 11964858 17947287 35894574 53841861 107683722 313080451 626160902 939241353 1878482706 2817724059 5635448118 8453172177 16906344354