Search a number
-
+
23152051 = 1319671399
BaseRepresentation
bin101100001010…
…0010110110011
31121120020122101
41120110112303
521411331201
62144121231
7400534456
oct130242663
947506571
1023152051
111208352a
127906217
134a48050
14310949d
152074d01
hex16145b3

23152051 has 16 divisors (see below), whose sum is σ = 26656000. Its totient is φ = 19929888.

The previous prime is 23152033. The next prime is 23152093. The reversal of 23152051 is 15025132.

It is a cyclic number.

It is not a de Polignac number, because 23152051 - 29 = 23151539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23152751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15850 + ... + 17248.

It is an arithmetic number, because the mean of its divisors is an integer number (1666000).

Almost surely, 223152051 is an apocalyptic number.

23152051 is a deficient number, since it is larger than the sum of its proper divisors (3503949).

23152051 is a wasteful number, since it uses less digits than its factorization.

23152051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 23152051 is about 4811.6578224142. The cubic root of 23152051 is about 285.0120072914.

Adding to 23152051 its reverse (15025132), we get a palindrome (38177183).

The spelling of 23152051 in words is "twenty-three million, one hundred fifty-two thousand, fifty-one".

Divisors: 1 13 19 67 247 871 1273 1399 16549 18187 26581 93733 345553 1218529 1780927 23152051