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23713381 = 103230227
BaseRepresentation
bin101101001110…
…1011001100101
31122121202122101
41122131121211
522032312011
62204132101
7405363136
oct132353145
948552571
1023713381
111242723a
127b37031
134bb36b3
143213c8d
1521362c1
hex169d665

23713381 has 4 divisors (see below), whose sum is σ = 23943712. Its totient is φ = 23483052.

The previous prime is 23713373. The next prime is 23713399. The reversal of 23713381 is 18331732.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23713381 - 23 = 23713373 is a prime.

It is a super-2 number, since 2×237133812 = 1124648876902322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23713301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115011 + ... + 115216.

It is an arithmetic number, because the mean of its divisors is an integer number (5985928).

Almost surely, 223713381 is an apocalyptic number.

It is an amenable number.

23713381 is a deficient number, since it is larger than the sum of its proper divisors (230331).

23713381 is a wasteful number, since it uses less digits than its factorization.

23713381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230330.

The product of its digits is 3024, while the sum is 28.

The square root of 23713381 is about 4869.6386929628. The cubic root of 23713381 is about 287.2970454200.

The spelling of 23713381 in words is "twenty-three million, seven hundred thirteen thousand, three hundred eighty-one".

Divisors: 1 103 230227 23713381