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16995860869 = 136427203419
BaseRepresentation
bin11111101010000100…
…00100000110000101
31121212110201012002111
433311002010012011
5234301420021434
611450252141021
71141113301531
oct176502040605
947773635074
1016995860869
1172317a1909
123363a67771
1317ab1a4410
14b73322bc1
1569715a964
hex3f5084185

16995860869 has 8 divisors (see below), whose sum is σ = 18306172640. Its totient is φ = 15685968816.

The previous prime is 16995860863. The next prime is 16995860873. The reversal of 16995860869 is 96806859961.

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

It is a cyclic number.

It is not a de Polignac number, because 16995860869 - 225 = 16962306437 is a prime.

It is a super-2 number, since 2×169958608692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16995860863) 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, 18159 + ... + 185260.

It is an arithmetic number, because the mean of its divisors is an integer number (2288271580).

Almost surely, 216995860869 is an apocalyptic number.

It is an amenable number.

16995860869 is a deficient number, since it is larger than the sum of its proper divisors (1310311771).

16995860869 is a wasteful number, since it uses less digits than its factorization.

16995860869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209859.

The product of its (nonzero) digits is 50388480, while the sum is 67.

The spelling of 16995860869 in words is "sixteen billion, nine hundred ninety-five million, eight hundred sixty thousand, eight hundred sixty-nine".

Divisors: 1 13 6427 83551 203419 2644447 1307373913 16995860869