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23304479 = 11317509
BaseRepresentation
bin101100011100…
…1100100011111
31121211222201212
41120321210133
521431220404
62151255035
7402041042
oct130714437
947758655
1023304479
1112178000
12797a47b
134a9c543
143148c59
1520a506e
hex163991f

23304479 has 8 divisors (see below), whose sum is σ = 25634640. Its totient is φ = 21184680.

The previous prime is 23304473. The next prime is 23304481. The reversal of 23304479 is 97440332.

It is not a de Polignac number, because 23304479 - 212 = 23300383 is a prime.

It is a super-2 number, since 2×233044792 = 1086197482922882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23304473) 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, 7424 + ... + 10085.

It is an arithmetic number, because the mean of its divisors is an integer number (3204330).

Almost surely, 223304479 is an apocalyptic number.

23304479 is a deficient number, since it is larger than the sum of its proper divisors (2330161).

23304479 is an equidigital number, since it uses as much as digits as its factorization.

23304479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17542 (or 17520 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 23304479 is about 4827.4712842232. The cubic root of 23304479 is about 285.6361250130.

The spelling of 23304479 in words is "twenty-three million, three hundred four thousand, four hundred seventy-nine".

Divisors: 1 11 121 1331 17509 192599 2118589 23304479