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16160640311 = 29557263459
BaseRepresentation
bin11110000110011111…
…11100110100110111
31112201021002120212202
433003033330310313
5231044110442221
611231334335115
71111322114264
oct170317746467
945637076782
1016160640311
116943295292
1231701ba49b
1316a713c27a
14ad442a26b
15648b77d0b
hex3c33fcd37

16160640311 has 4 divisors (see below), whose sum is σ = 16717903800. Its totient is φ = 15603376824.

The previous prime is 16160640281. The next prime is 16160640313. The reversal of 16160640311 is 11304606161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11304606161 = 17664976833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16160640311 is a prime.

It is a super-2 number, since 2×161606403112 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 557263459 = 16160640311 / (1 + 6 + 1 + 6 + 0 + 6 + 4 + 0 + 3 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16160640313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278631701 + ... + 278631758.

It is an arithmetic number, because the mean of its divisors is an integer number (4179475950).

Almost surely, 216160640311 is an apocalyptic number.

16160640311 is a deficient number, since it is larger than the sum of its proper divisors (557263489).

16160640311 is an equidigital number, since it uses as much as digits as its factorization.

16160640311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557263488.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 16160640311 in words is "sixteen billion, one hundred sixty million, six hundred forty thousand, three hundred eleven".

Divisors: 1 29 557263459 16160640311