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13390102784 = 2882163709
BaseRepresentation
bin11000111100001110…
…01100000100000000
31021120011211200212202
430132013030010000
5204410331242114
610052404212332
7652550665352
oct143607140400
937504750782
1013390102784
115751400453
12271839a0a8
131355159456
149104b50d2
1553580ccde
hex31e1cc100

13390102784 has 36 divisors (see below), whose sum is σ = 26760875820. Its totient is φ = 6686791680.

The previous prime is 13390102783. The next prime is 13390102813. The reversal of 13390102784 is 48720109331.

It can be written as a sum of positive squares in 2 ways, for example, as 2265760000 + 11124342784 = 47600^2 + 105472^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13390102783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178322 + ... + 242030.

Almost surely, 213390102784 is an apocalyptic number.

It is an amenable number.

13390102784 is a deficient number, since it is larger than the sum of its proper divisors (13370773036).

13390102784 is an frugal number, since it uses more digits than its factorization.

13390102784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64546 (or 64532 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 13390102784 in words is "thirteen billion, three hundred ninety million, one hundred two thousand, seven hundred eighty-four".

Divisors: 1 2 4 8 16 32 64 128 256 821 1642 3284 6568 13136 26272 52544 63709 105088 127418 210176 254836 509672 1019344 2038688 4077376 8154752 16309504 52305089 104610178 209220356 418440712 836881424 1673762848 3347525696 6695051392 13390102784