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23679139 = 117130319
BaseRepresentation
bin101101001010…
…1000010100011
31122120000200011
41122111002203
522030213024
62203305351
7405161251
oct132250243
948500604
1023679139
1112403540
127b1b257
134ba0c33
1432055d1
15212b094
hex16950a3

23679139 has 8 divisors (see below), whose sum is σ = 26196480. Its totient is φ = 21222600.

The previous prime is 23679137. The next prime is 23679151. The reversal of 23679139 is 93197632.

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 23679139 - 21 = 23679137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23679137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14379 + ... + 15940.

It is an arithmetic number, because the mean of its divisors is an integer number (3274560).

Almost surely, 223679139 is an apocalyptic number.

23679139 is a deficient number, since it is larger than the sum of its proper divisors (2517341).

23679139 is a wasteful number, since it uses less digits than its factorization.

23679139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30401.

The product of its digits is 61236, while the sum is 40.

The square root of 23679139 is about 4866.1215562294. The cubic root of 23679139 is about 287.1586936544.

The spelling of 23679139 in words is "twenty-three million, six hundred seventy-nine thousand, one hundred thirty-nine".

Divisors: 1 11 71 781 30319 333509 2152649 23679139