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16253157 = 323235553
BaseRepresentation
bin111110000000…
…000011100101
31010120202010210
4332000003211
513130100112
61340210033
7255102204
oct76000345
933522123
1016253157
1191a1268
125539919
1334a0b6b
14223123b
151660b3c
hexf800e5

16253157 has 8 divisors (see below), whose sum is σ = 22613184. Its totient is φ = 10364288.

The previous prime is 16253147. The next prime is 16253191. The reversal of 16253157 is 75135261.

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 16253157 - 210 = 16252133 is a prime.

It is a super-2 number, since 2×162531572 = 528330224933298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16253147) 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, 117708 + ... + 117845.

It is an arithmetic number, because the mean of its divisors is an integer number (2826648).

Almost surely, 216253157 is an apocalyptic number.

It is an amenable number.

16253157 is a deficient number, since it is larger than the sum of its proper divisors (6360027).

16253157 is a wasteful number, since it uses less digits than its factorization.

16253157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235579.

The product of its digits is 6300, while the sum is 30.

The square root of 16253157 is about 4031.5204327896. The cubic root of 16253157 is about 253.3062526839.

The spelling of 16253157 in words is "sixteen million, two hundred fifty-three thousand, one hundred fifty-seven".

Divisors: 1 3 23 69 235553 706659 5417719 16253157