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31441113314221 = 1313779117552287
BaseRepresentation
bin1110010011000011101000…
…11000111111001110101101
311010022202000020122022110111
413021201310120333032231
513110112400002023341
6150511503102540021
76423355045425142
oct711416430771655
9133282006568414
1031441113314221
11a022112885886
1236395b9297611
131470b6595b590
147a9a87d6a3c9
15397cc7536681
hex1c987463f3ad

31441113314221 has 8 divisors (see below), whose sum is σ = 33859908153344. Its totient is φ = 29022353855280.

The previous prime is 31441113314179. The next prime is 31441113314227. The reversal of 31441113314221 is 12241331114413.

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 31441113314221 - 233 = 31432523379629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31441113314227) 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, 6984861 + ... + 10567426.

It is an arithmetic number, because the mean of its divisors is an integer number (4232488519168).

Almost surely, 231441113314221 is an apocalyptic number.

It is an amenable number.

31441113314221 is a deficient number, since it is larger than the sum of its proper divisors (2418794839123).

31441113314221 is a wasteful number, since it uses less digits than its factorization.

31441113314221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17690091.

The product of its digits is 6912, while the sum is 31.

Adding to 31441113314221 its reverse (12241331114413), we get a palindrome (43682444428634).

The spelling of 31441113314221 in words is "thirty-one trillion, four hundred forty-one billion, one hundred thirteen million, three hundred fourteen thousand, two hundred twenty-one".

Divisors: 1 13 137791 1791283 17552287 228179731 2418547178017 31441113314221