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23155113 = 343179497
BaseRepresentation
bin101100001010…
…1000110101001
31121120101211210
41120111012221
521411430423
62144143333
7400546422
oct130250651
947511753
1023155113
1112085863
127907b49
134a49567
14310a649
152075b93
hex16151a9

23155113 has 8 divisors (see below), whose sum is σ = 31591648. Its totient is φ = 15077664.

The previous prime is 23155063. The next prime is 23155123. The reversal of 23155113 is 31155132.

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

It is not a de Polignac number, because 23155113 - 26 = 23155049 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 23155113.

It is not an unprimeable number, because it can be changed into a prime (23155123) 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, 89620 + ... + 89877.

It is an arithmetic number, because the mean of its divisors is an integer number (3948956).

Almost surely, 223155113 is an apocalyptic number.

It is an amenable number.

23155113 is a deficient number, since it is larger than the sum of its proper divisors (8436535).

23155113 is a wasteful number, since it uses less digits than its factorization.

23155113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179543.

The product of its digits is 450, while the sum is 21.

The square root of 23155113 is about 4811.9759974464. The cubic root of 23155113 is about 285.0245715965.

The spelling of 23155113 in words is "twenty-three million, one hundred fifty-five thousand, one hundred thirteen".

Divisors: 1 3 43 129 179497 538491 7718371 23155113