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23215225201 = 753467133993
BaseRepresentation
bin10101100111101111…
…000011100101110001
32012220220112122001121
4111213233003211301
5340021044201301
614355342502241
71451203105210
oct254757034561
965826478047
1023215225201
119933431333
1245ba894981
13225c84745c
1411a3315077
1590d1753a1
hex567bc3971

23215225201 has 16 divisors (see below), whose sum is σ = 27090370944. Its totient is φ = 19481364864.

The previous prime is 23215225193. The next prime is 23215225217. The reversal of 23215225201 is 10252251232.

It is a cyclic number.

It is not a de Polignac number, because 23215225201 - 23 = 23215225193 is a prime.

It is a super-2 number, since 2×232152252012 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23215225291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106261 + ... + 240253.

It is an arithmetic number, because the mean of its divisors is an integer number (1693148184).

Almost surely, 223215225201 is an apocalyptic number.

It is an amenable number.

23215225201 is a deficient number, since it is larger than the sum of its proper divisors (3875145743).

23215225201 is a wasteful number, since it uses less digits than its factorization.

23215225201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134520.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 23215225201 its reverse (10252251232), we get a palindrome (33467476433).

The spelling of 23215225201 in words is "twenty-three billion, two hundred fifteen million, two hundred twenty-five thousand, two hundred one".

Divisors: 1 7 53 371 467 3269 24751 133993 173257 937951 7101629 49711403 62574731 438023117 3316460743 23215225201