Search a number
-
+
16156953 = 3217105601
BaseRepresentation
bin111101101000…
…100100011001
31010101212011200
4331220210121
513114010303
61334144413
7254221551
oct75504431
933355150
1016156953
119135a5a
1254b2109
133469137
142208161
1516423a3
hexf68919

16156953 has 12 divisors (see below), whose sum is σ = 24710868. Its totient is φ = 10137600.

The previous prime is 16156951. The next prime is 16156957. The reversal of 16156953 is 35965161.

16156953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14538969 + 1617984 = 3813^2 + 1272^2 .

It is not a de Polignac number, because 16156953 - 21 = 16156951 is a prime.

It is a super-2 number, since 2×161569532 = 522094260488418, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16156951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52648 + ... + 52953.

It is an arithmetic number, because the mean of its divisors is an integer number (2059239).

Almost surely, 216156953 is an apocalyptic number.

It is an amenable number.

16156953 is a deficient number, since it is larger than the sum of its proper divisors (8553915).

16156953 is a wasteful number, since it uses less digits than its factorization.

16156953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105624 (or 105621 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 16156953 is about 4019.5712457923. The cubic root of 16156953 is about 252.8054819837.

The spelling of 16156953 in words is "sixteen million, one hundred fifty-six thousand, nine hundred fifty-three".

Divisors: 1 3 9 17 51 153 105601 316803 950409 1795217 5385651 16156953