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13680678134 = 225339269953
BaseRepresentation
bin11001011110110111…
…01001010011110110
31022022102121110022202
430233123221103312
5211004223200014
610141304224502
7663006562664
oct145733512366
938272543282
1013680678134
115890427a72
12279976b132
1313a0407526
1493ad13c34
155510a93de
hex32f6e94f6

13680678134 has 8 divisors (see below), whose sum is σ = 20521903080. Its totient is φ = 6840043776.

The previous prime is 13680678133. The next prime is 13680678149. The reversal of 13680678134 is 43187608631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×136806781342 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13680678133) 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, 84299 + ... + 185654.

It is an arithmetic number, because the mean of its divisors is an integer number (2565237885).

Almost surely, 213680678134 is an apocalyptic number.

13680678134 is a deficient number, since it is larger than the sum of its proper divisors (6841224946).

13680678134 is a wasteful number, since it uses less digits than its factorization.

13680678134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295294.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 13680678134 in words is "thirteen billion, six hundred eighty million, six hundred seventy-eight thousand, one hundred thirty-four".

Divisors: 1 2 25339 50678 269953 539906 6840339067 13680678134