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16415296871 = 19990790947
BaseRepresentation
bin11110100100110110…
…11000110101100111
31120101000021111000012
433102123120311213
5232104303444441
611312512440435
71120533502241
oct172233306547
946330244005
1016415296871
116a64009556
12322154911b
131717b2231c
14b1a199091
156611cb9eb
hex3d26d8d67

16415296871 has 8 divisors (see below), whose sum is σ = 16516156800. Its totient is φ = 16314621048.

The previous prime is 16415296861. The next prime is 16415296957. The reversal of 16415296871 is 17869251461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16415296871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16415296801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135020 + ... + 225966.

It is an arithmetic number, because the mean of its divisors is an integer number (2064519600).

Almost surely, 216415296871 is an apocalyptic number.

16415296871 is a deficient number, since it is larger than the sum of its proper divisors (100859929).

16415296871 is an equidigital number, since it uses as much as digits as its factorization.

16415296871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92053.

The product of its digits is 725760, while the sum is 50.

The spelling of 16415296871 in words is "sixteen billion, four hundred fifteen million, two hundred ninety-six thousand, eight hundred seventy-one".

Divisors: 1 199 907 90947 180493 18098453 82488929 16415296871