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22311323031013 = 193689931824173
BaseRepresentation
bin1010001001010110000100…
…11110111101010111100101
32220222221102110111221211221
411010223002132331113211
510411022042143443023
6115241402540100341
74461640245436462
oct504530236752745
986887373457757
1022311323031013
1171221a7217995
122604100b346b1
13c5ac444a4053
14571c339aa669
1528a57e61e85d
hex144ac27bd5e5

22311323031013 has 8 divisors (see below), whose sum is σ = 23486240412000. Its totient is φ = 21136469372208.

The previous prime is 22311323030987. The next prime is 22311323031029. The reversal of 22311323031013 is 31013032311322.

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

It is not a de Polignac number, because 22311323031013 - 25 = 22311323030981 is a prime.

It is a super-3 number, since 3×223113230310133 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22311323031043) 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, 15211006 + ... + 16613167.

It is an arithmetic number, because the mean of its divisors is an integer number (2935780051500).

Almost surely, 222311323031013 is an apocalyptic number.

It is an amenable number.

22311323031013 is a deficient number, since it is larger than the sum of its proper divisors (1174917380987).

22311323031013 is a wasteful number, since it uses less digits than its factorization.

22311323031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31861091.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 22311323031013 its reverse (31013032311322), we get a palindrome (53324355342335).

The spelling of 22311323031013 in words is "twenty-two trillion, three hundred eleven billion, three hundred twenty-three million, thirty-one thousand, thirteen".

Divisors: 1 19 36899 701081 31824173 604659287 1174280159527 22311323031013