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31322301344021 = 1391814871255589
BaseRepresentation
bin1110001111100110010101…
…01001010010100100010101
311002220101100000221212110202
413013303022221102210111
513101141033121002041
6150341133330030245
76411650553354362
oct707631251224425
9132811300855422
1031322301344021
119a867935a1076
12361a57b418385
1314628ac93712c
147a4016719469
15394b71a04a9b
hex1c7ccaa52915

31322301344021 has 16 divisors (see below), whose sum is σ = 31728574550400. Its totient is φ = 30918684830400.

The previous prime is 31322301344003. The next prime is 31322301344029. The reversal of 31322301344021 is 12044310322313.

It is a cyclic number.

It is not a de Polignac number, because 31322301344021 - 214 = 31322301327637 is a prime.

It is a super-2 number, since 2×313223013440212 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322301344029) 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, 122421695 + ... + 122677283.

It is an arithmetic number, because the mean of its divisors is an integer number (1983035909400).

Almost surely, 231322301344021 is an apocalyptic number.

It is an amenable number.

31322301344021 is a deficient number, since it is larger than the sum of its proper divisors (406273206379).

31322301344021 is a wasteful number, since it uses less digits than its factorization.

31322301344021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260780.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 31322301344021 its reverse (12044310322313), we get a palindrome (43366611666334).

The spelling of 31322301344021 in words is "thirty-one trillion, three hundred twenty-two billion, three hundred one million, three hundred forty-four thousand, twenty-one".

Divisors: 1 139 181 4871 25159 255589 677069 881651 35526871 46261609 122549489 1244974019 6430363651 173051388641 225340297439 31322301344021