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23117927 = 719173819
BaseRepresentation
bin101100000110…
…0000001100111
31121111111211112
41120030001213
521404233202
62143255235
7400333130
oct130140147
947444745
1023117927
111205a928
1278aa51b
134a35661
1430dac87
152069b52
hex160c067

23117927 has 8 divisors (see below), whose sum is σ = 27811200. Its totient is φ = 18772344.

The previous prime is 23117923. The next prime is 23117929. The reversal of 23117927 is 72971132.

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

It is a cyclic number.

It is not a de Polignac number, because 23117927 - 22 = 23117923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23117893 and 23117902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23117923) 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, 86777 + ... + 87042.

It is an arithmetic number, because the mean of its divisors is an integer number (3476400).

Almost surely, 223117927 is an apocalyptic number.

23117927 is a deficient number, since it is larger than the sum of its proper divisors (4693273).

23117927 is a wasteful number, since it uses less digits than its factorization.

23117927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173845.

The product of its digits is 5292, while the sum is 32.

The square root of 23117927 is about 4808.1105436543. The cubic root of 23117927 is about 284.8719112521.

The spelling of 23117927 in words is "twenty-three million, one hundred seventeen thousand, nine hundred twenty-seven".

Divisors: 1 7 19 133 173819 1216733 3302561 23117927