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23428713 = 3721114489
BaseRepresentation
bin101100101011…
…1111001101001
31122002022011010
41121113321221
521444204323
62154054133
7403066200
oct131277151
948068133
1023428713
1112252380
127a1a349
134b13c59
14317c237
1520cbc93
hex1657e69

23428713 has 24 divisors (see below), whose sum is σ = 39644640. Its totient is φ = 12169920.

The previous prime is 23428673. The next prime is 23428739. The reversal of 23428713 is 31782432.

It is not a de Polignac number, because 23428713 - 214 = 23412329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23428213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5628 + ... + 8861.

It is an arithmetic number, because the mean of its divisors is an integer number (1651860).

Almost surely, 223428713 is an apocalyptic number.

It is an amenable number.

23428713 is a deficient number, since it is larger than the sum of its proper divisors (16215927).

23428713 is a wasteful number, since it uses less digits than its factorization.

23428713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14517 (or 14510 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 23428713 is about 4840.3215802258. The cubic root of 23428713 is about 286.1427922425.

The spelling of 23428713 in words is "twenty-three million, four hundred twenty-eight thousand, seven hundred thirteen".

Divisors: 1 3 7 11 21 33 49 77 147 231 539 1617 14489 43467 101423 159379 304269 478137 709961 1115653 2129883 3346959 7809571 23428713