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16085087929 = 1268272
BaseRepresentation
bin11101111101011111…
…01111011010111001
31112111222221010111101
432332233233122321
5230420240303204
611220035131401
71106413664041
oct167657573271
945458833441
1016085087929
1169046816a9
12314aa43b61
1316945a8411
14ac83a0721
15642201ea4
hex3bebef6b9

16085087929 has 3 divisors (see below), whose sum is σ = 16085214757. Its totient is φ = 16084961102.

The previous prime is 16085087917. The next prime is 16085087957. The reversal of 16085087929 is 92978058061.

The square root of 16085087929 is 126827.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 16085087929 - 217 = 16084956857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16085087929.

It is not an unprimeable number, because it can be changed into a prime (16085097929) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 63414 + ... + 190240.

Almost surely, 216085087929 is an apocalyptic number.

16085087929 is the 126827-th square number.

16085087929 is the 63414-th centered octagonal number.

It is an amenable number.

16085087929 is a deficient number, since it is larger than the sum of its proper divisors (126828).

16085087929 is an frugal number, since it uses more digits than its factorization.

16085087929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253654 (or 126827 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 16085087929 in words is "sixteen billion, eighty-five million, eighty-seven thousand, nine hundred twenty-nine".

Divisors: 1 126827 16085087929