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16252897 = 31524287
BaseRepresentation
bin111101111111…
…111111100001
31010120201210011
4331333333201
513130043042
61340204521
7255101353
oct75777741
933521704
1016252897
1191a1051
125539741
1334a09cb
1422310d3
151660a17
hexf7ffe1

16252897 has 4 divisors (see below), whose sum is σ = 16777216. Its totient is φ = 15728580.

The previous prime is 16252891. The next prime is 16252919. The reversal of 16252897 is 79825261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79825261 = 531506137.

It is a cyclic number.

It is not a de Polignac number, because 16252897 - 23 = 16252889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16252891) 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 3 ways as a sum of consecutive naturals, for example, 262113 + ... + 262174.

It is an arithmetic number, because the mean of its divisors is an integer number (4194304).

Almost surely, 216252897 is an apocalyptic number.

It is an amenable number.

16252897 is a deficient number, since it is larger than the sum of its proper divisors (524319).

16252897 is an equidigital number, since it uses as much as digits as its factorization.

16252897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524318.

The product of its digits is 60480, while the sum is 40.

The square root of 16252897 is about 4031.4881867618. The cubic root of 16252897 is about 253.3049019724.

The spelling of 16252897 in words is "sixteen million, two hundred fifty-two thousand, eight hundred ninety-seven".

Divisors: 1 31 524287 16252897