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12403070660 = 225620153533
BaseRepresentation
bin10111000110100011…
…11101011011000100
31012000101120021100102
423203101331123010
5200400141230120
65410424503232
7616234234601
oct134321753304
935011507312
1012403070660
115295234622
1224a191ab18
13122880c986
148593816a8
154c8d3dd75
hex2e347d6c4

12403070660 has 12 divisors (see below), whose sum is σ = 26046448428. Its totient is φ = 4961228256.

The previous prime is 12403070623. The next prime is 12403070677. The reversal of 12403070660 is 6607030421.

12403070660 = 101072 + 101082 + ... + 102262.

It can be written as a sum of positive squares in 2 ways, for example, as 8728043776 + 3675026884 = 93424^2 + 60622^2 .

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, 310076747 + ... + 310076786.

It is an arithmetic number, because the mean of its divisors is an integer number (2170537369).

Almost surely, 212403070660 is an apocalyptic number.

12403070660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12403070660 is an abundant number, since it is smaller than the sum of its proper divisors (13643377768).

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

12403070660 is a wasteful number, since it uses less digits than its factorization.

12403070660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620153542 (or 620153540 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The spelling of 12403070660 in words is "twelve billion, four hundred three million, seventy thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 620153533 1240307066 2480614132 3100767665 6201535330 12403070660