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1222405601613 = 371929105643903
BaseRepresentation
bin10001110010011101000…
…011010011100101001101
311022212020112210121021020
4101302131003103211031
5130011441313222423
62333322042224353
7154213231113510
oct21623503234515
94285215717236
101222405601613
11431468104219
12178ab11b50b9
138b37048cb41
14432440cad77
1521be6c374e3
hex11c9d0d394d

1222405601613 has 32 divisors (see below), whose sum is σ = 2028362956800. Its totient is φ = 638934319296.

The previous prime is 1222405601579. The next prime is 1222405601633. The reversal of 1222405601613 is 3161065042221.

It is a de Polignac number, because none of the positive numbers 2k-1222405601613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222405601633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52810381 + ... + 52833522.

It is an arithmetic number, because the mean of its divisors is an integer number (63386342400).

Almost surely, 21222405601613 is an apocalyptic number.

It is an amenable number.

1222405601613 is a deficient number, since it is larger than the sum of its proper divisors (805957355187).

1222405601613 is a wasteful number, since it uses less digits than its factorization.

1222405601613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105643961.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 1222405601613 in words is "one trillion, two hundred twenty-two billion, four hundred five million, six hundred one thousand, six hundred thirteen".

Divisors: 1 3 7 19 21 29 57 87 133 203 399 551 609 1653 3857 11571 105643903 316931709 739507321 2007234157 2218521963 3063673187 6021702471 9191019561 14050639099 21445712309 42151917297 58209790553 64337136927 174629371659 407468533871 1222405601613