[go: up one dir, main page]

Search a number
-
+
156110561 = 211173951
BaseRepresentation
bin10010100111000…
…00111011100001
3101212202020102122
421103200323201
5304431014221
623253554025
73603626555
oct1123407341
9355666378
10156110561
11801361a2
1244345915
132645b319
1416a39865
15da89eab
hex94e0ee1

156110561 has 4 divisors (see below), whose sum is σ = 156186624. Its totient is φ = 156034500.

The previous prime is 156110551. The next prime is 156110569. The reversal of 156110561 is 165011651.

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: 165011651 = 723573093.

It is a cyclic number.

It is not a de Polignac number, because 156110561 - 210 = 156109537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 156110561.

It is not an unprimeable number, because it can be changed into a prime (156110569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34865 + ... + 39086.

It is an arithmetic number, because the mean of its divisors is an integer number (39046656).

Almost surely, 2156110561 is an apocalyptic number.

It is an amenable number.

156110561 is a deficient number, since it is larger than the sum of its proper divisors (76063).

156110561 is an equidigital number, since it uses as much as digits as its factorization.

156110561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76062.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 156110561 is about 12494.4211950774. The cubic root of 156110561 is about 538.4484049738.

The spelling of 156110561 in words is "one hundred fifty-six million, one hundred ten thousand, five hundred sixty-one".

Divisors: 1 2111 73951 156110561