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1308905997324 = 223109075499777
BaseRepresentation
bin10011000011000000111…
…000001000010000001100
311122010111220112222210220
4103003000320020100030
5132421114413403244
62441145250031340
7163364624256222
oct23030070102014
94563456488726
101308905997324
11465116348862
12191811b78550
1396577253943
14474cc2d0b12
15240aac34319
hex130c0e0840c

1308905997324 has 12 divisors (see below), whose sum is σ = 3054113993784. Its totient is φ = 436301999104.

The previous prime is 1308905997299. The next prime is 1308905997391. The reversal of 1308905997324 is 4237995098031.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54537749877 + ... + 54537749900.

It is an arithmetic number, because the mean of its divisors is an integer number (254509499482).

Almost surely, 21308905997324 is an apocalyptic number.

It is an amenable number.

1308905997324 is an abundant number, since it is smaller than the sum of its proper divisors (1745207996460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1308905997324 is a wasteful number, since it uses less digits than its factorization.

1308905997324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109075499784 (or 109075499782 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 1308905997324 in words is "one trillion, three hundred eight billion, nine hundred five million, nine hundred ninety-seven thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 12 109075499777 218150999554 327226499331 436301999108 654452998662 1308905997324