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23301949 = 112118359
BaseRepresentation
bin101100011100…
…0111100111101
31121211212021011
41120320330331
521431130244
62151235221
7402030466
oct130707475
947755234
1023301949
1112176110
127978b11
134a9b348
143147d6d
1520a4434
hex1638f3d

23301949 has 4 divisors (see below), whose sum is σ = 25420320. Its totient is φ = 21183580.

The previous prime is 23301947. The next prime is 23301953. The reversal of 23301949 is 94910332.

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.

It is not a de Polignac number, because 23301949 - 21 = 23301947 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23301949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23301947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1059169 + ... + 1059190.

It is an arithmetic number, because the mean of its divisors is an integer number (6355080).

Almost surely, 223301949 is an apocalyptic number.

It is an amenable number.

23301949 is a deficient number, since it is larger than the sum of its proper divisors (2118371).

23301949 is a wasteful number, since it uses less digits than its factorization.

23301949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118370.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 23301949 is about 4827.2092351586. The cubic root of 23301949 is about 285.6257881510.

The spelling of 23301949 in words is "twenty-three million, three hundred one thousand, nine hundred forty-nine".

Divisors: 1 11 2118359 23301949