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23402344031 = 112127485821
BaseRepresentation
bin10101110010111000…
…110110111001011111
32020101221122020211122
4111302320312321133
5340412000002111
614430105241155
71455634433153
oct256270667137
966357566748
1023402344031
119a1a0164a0
1246514931bb
13228c541661
1411c0103063
1591e7d7cdb
hex572e36e5f

23402344031 has 4 divisors (see below), whose sum is σ = 25529829864. Its totient is φ = 21274858200.

The previous prime is 23402344019. The next prime is 23402344057. The reversal of 23402344031 is 13044320432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23402344031 - 26 = 23402343967 is a prime.

It is a super-2 number, since 2×234023440312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23402344001) 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, 1063742900 + ... + 1063742921.

It is an arithmetic number, because the mean of its divisors is an integer number (6382457466).

Almost surely, 223402344031 is an apocalyptic number.

23402344031 is a deficient number, since it is larger than the sum of its proper divisors (2127485833).

23402344031 is a wasteful number, since it uses less digits than its factorization.

23402344031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127485832.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 23402344031 its reverse (13044320432), we get a palindrome (36446664463).

The spelling of 23402344031 in words is "twenty-three billion, four hundred two million, three hundred forty-four thousand, thirty-one".

Divisors: 1 11 2127485821 23402344031