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23073865 = 57436211
BaseRepresentation
bin101100000000…
…1010001001001
31121102021101121
41120001101021
521401330430
62142315241
7400060513
oct130012111
947367347
1023073865
111202a811
127888b21
134a1b599
1430c8bb3
15205ba7a
hex1601449

23073865 has 8 divisors (see below), whose sum is σ = 27730368. Its totient is φ = 18431280.

The previous prime is 23073863. The next prime is 23073871. The reversal of 23073865 is 56837032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23073865 - 21 = 23073863 is a prime.

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 23073865.

It is not an unprimeable number, because it can be changed into a prime (23073863) 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, 610 + ... + 6820.

It is an arithmetic number, because the mean of its divisors is an integer number (3466296).

Almost surely, 223073865 is an apocalyptic number.

It is an amenable number.

23073865 is a deficient number, since it is larger than the sum of its proper divisors (4656503).

23073865 is an equidigital number, since it uses as much as digits as its factorization.

23073865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6959.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 23073865 is about 4803.5263088693. The cubic root of 23073865 is about 284.6908106832.

The spelling of 23073865 in words is "twenty-three million, seventy-three thousand, eight hundred sixty-five".

Divisors: 1 5 743 3715 6211 31055 4614773 23073865