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22040023031 = 131799728611
BaseRepresentation
bin10100100001101100…
…000000111111110111
32002220000012011202022
4110201230000333313
5330114221214111
614043002103355
71410113050625
oct244154007767
962800164668
1022040023031
119390022574
1243311aab5b
132103226160
1410d11dc515
1588edd72db
hex521b00ff7

22040023031 has 8 divisors (see below), whose sum is σ = 25131610224. Its totient is φ = 19147893120.

The previous prime is 22040023013. The next prime is 22040023043. The reversal of 22040023031 is 13032004022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22040023031 - 226 = 21972914167 is a prime.

It is a super-2 number, since 2×220400230312 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22040023001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49864085 + ... + 49864526.

It is an arithmetic number, because the mean of its divisors is an integer number (3141451278).

Almost surely, 222040023031 is an apocalyptic number.

22040023031 is a deficient number, since it is larger than the sum of its proper divisors (3091587193).

22040023031 is a wasteful number, since it uses less digits than its factorization.

22040023031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99728641.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22040023031 its reverse (13032004022), we get a palindrome (35072027053).

The spelling of 22040023031 in words is "twenty-two billion, forty million, twenty-three thousand, thirty-one".

Divisors: 1 13 17 221 99728611 1296471943 1695386387 22040023031