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22001000131 = 1114973318313
BaseRepresentation
bin10100011111010111…
…001001111011000011
32002210021202121101201
4110133113021323003
5330024224001011
614035045442031
71406130262345
oct243727117303
962707677351
1022001000131
11936aa9a040
124320110317
1320c8112296
1410c9d61295
1588b779cc1
hex51f5c9ec3

22001000131 has 16 divisors (see below), whose sum is σ = 24196456800. Its totient is φ = 19838488320.

The previous prime is 22001000123. The next prime is 22001000171. The reversal of 22001000131 is 13100010022.

It is a cyclic number.

It is not a de Polignac number, because 22001000131 - 23 = 22001000123 is a prime.

It is a super-2 number, since 2×220010001312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22001000171) 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, 1192231 + ... + 1210543.

It is an arithmetic number, because the mean of its divisors is an integer number (1512278550).

Almost surely, 222001000131 is an apocalyptic number.

22001000131 is a deficient number, since it is larger than the sum of its proper divisors (2195456669).

22001000131 is a wasteful number, since it uses less digits than its factorization.

22001000131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19206.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 22001000131 its reverse (13100010022), we get a palindrome (35101010153).

The spelling of 22001000131 in words is "twenty-two billion, one million, one hundred thirty-one", and thus it is an aban number.

Divisors: 1 11 149 733 1639 8063 18313 109217 201443 1201387 2728637 13423429 30015007 147657719 2000090921 22001000131