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23056402001 = 67344125403
BaseRepresentation
bin10101011110010001…
…001100011001010001
32012111211200120120212
4111132101030121101
5334204414331001
614331510413505
71444234116623
oct253621143121
965454616525
1023056402001
119861813096
124575661295
132235979529
14118a1b0c13
158ee2517bb
hex55e44c651

23056402001 has 4 divisors (see below), whose sum is σ = 23400527472. Its totient is φ = 22712276532.

The previous prime is 23056401959. The next prime is 23056402007. The reversal of 23056402001 is 10020465032.

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 23056402001 - 214 = 23056385617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23056402007) 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, 172062635 + ... + 172062768.

It is an arithmetic number, because the mean of its divisors is an integer number (5850131868).

Almost surely, 223056402001 is an apocalyptic number.

It is an amenable number.

23056402001 is a deficient number, since it is larger than the sum of its proper divisors (344125471).

23056402001 is an equidigital number, since it uses as much as digits as its factorization.

23056402001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344125470.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 23056402001 its reverse (10020465032), we get a palindrome (33076867033).

The spelling of 23056402001 in words is "twenty-three billion, fifty-six million, four hundred two thousand, one".

Divisors: 1 67 344125403 23056402001