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23207630137 = 163142378099
BaseRepresentation
bin10101100111010010…
…000101010100111001
32012220101020202120221
4111213102011110321
5340012123131022
614354512020041
71451051413156
oct254722052471
965811222527
1023207630137
11992a11401a
1245b8231621
13225b0b8433
1411a22d922d
1590c674cc7
hex567485539

23207630137 has 4 divisors (see below), whose sum is σ = 23350008400. Its totient is φ = 23065251876.

The previous prime is 23207630107. The next prime is 23207630153. The reversal of 23207630137 is 73103670232.

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 23207630137 - 223 = 23199241529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23207630107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71188887 + ... + 71189212.

It is an arithmetic number, because the mean of its divisors is an integer number (5837502100).

Almost surely, 223207630137 is an apocalyptic number.

It is an amenable number.

23207630137 is a deficient number, since it is larger than the sum of its proper divisors (142378263).

23207630137 is a wasteful number, since it uses less digits than its factorization.

23207630137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142378262.

The product of its (nonzero) digits is 31752, while the sum is 34.

The spelling of 23207630137 in words is "twenty-three billion, two hundred seven million, six hundred thirty thousand, one hundred thirty-seven".

Divisors: 1 163 142378099 23207630137