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16813830451 = 1113982713297
BaseRepresentation
bin11111010100010111…
…01011000100110011
31121101210012002022011
433222023223010303
5233413320033301
611420230423351
71133443125565
oct175213530463
947353162264
1016813830451
117148a72750
123312b01b57
13177c56c302
14b5709b335
156861a0a51
hex3ea2eb133

16813830451 has 16 divisors (see below), whose sum is σ = 18498049920. Its totient is φ = 15155844480.

The previous prime is 16813830419. The next prime is 16813830457. The reversal of 16813830451 is 15403831861.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16813830451 - 25 = 16813830419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16813830457) by changing a digit.

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, 1257835 + ... + 1271131.

It is an arithmetic number, because the mean of its divisors is an integer number (1156128120).

Almost surely, 216813830451 is an apocalyptic number.

16813830451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16813830451 is a deficient number, since it is larger than the sum of its proper divisors (1684219469).

16813830451 is a wasteful number, since it uses less digits than its factorization.

16813830451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14274.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 16813830451 in words is "sixteen billion, eight hundred thirteen million, eight hundred thirty thousand, four hundred fifty-one".

Divisors: 1 11 139 827 1529 9097 13297 114953 146267 1264483 1848283 10996619 20331113 120962809 1528530041 16813830451