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23123971 = 133535039
BaseRepresentation
bin101100000110…
…1100000000011
31121111211010101
41120031200003
521404431341
62143343231
7400356553
oct130154003
947454111
1023123971
1112064422
1278b1b17
134a38330
1430dd163
15206b831
hex160d803

23123971 has 8 divisors (see below), whose sum is σ = 24978240. Its totient is φ = 21280512.

The previous prime is 23123957. The next prime is 23123987. The reversal of 23123971 is 17932132.

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 23123971 - 25 = 23123939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23123921) 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, 2070 + ... + 7108.

It is an arithmetic number, because the mean of its divisors is an integer number (3122280).

Almost surely, 223123971 is an apocalyptic number.

23123971 is a deficient number, since it is larger than the sum of its proper divisors (1854269).

23123971 is a wasteful number, since it uses less digits than its factorization.

23123971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5405.

The product of its digits is 2268, while the sum is 28.

The square root of 23123971 is about 4808.7390239022. The cubic root of 23123971 is about 284.8967349283.

The spelling of 23123971 in words is "twenty-three million, one hundred twenty-three thousand, nine hundred seventy-one".

Divisors: 1 13 353 4589 5039 65507 1778767 23123971