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13381680807 = 3211232255517
BaseRepresentation
bin11000111011001110…
…00011111010100111
31021112120222211002200
430131213003322213
5204401202241212
610051503505543
7652416260445
oct143547037247
937476884080
1013381680807
115747678940
1227155b82b3
13135349ac31
1490d321b95
15534be76dc
hex31d9c3ea7

13381680807 has 36 divisors (see below), whose sum is σ = 22043026824. Its totient is φ = 7757465760.

The previous prime is 13381680803. The next prime is 13381680817. The reversal of 13381680807 is 70808618331.

It is not a de Polignac number, because 13381680807 - 22 = 13381680803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13381680803) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 75388 + ... + 180129.

Almost surely, 213381680807 is an apocalyptic number.

13381680807 is a deficient number, since it is larger than the sum of its proper divisors (8661346017).

13381680807 is a wasteful number, since it uses less digits than its factorization.

13381680807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255580 (or 255554 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 13381680807 in words is "thirteen billion, three hundred eighty-one million, six hundred eighty thousand, eight hundred seven".

Divisors: 1 3 9 11 23 33 69 99 207 253 529 759 1587 2277 4761 5819 17457 52371 255517 766551 2299653 2810687 5876891 8432061 17630673 25296183 52892019 64645801 135168493 193937403 405505479 581812209 1216516437 1486853423 4460560269 13381680807