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13680588540 = 2235228009809
BaseRepresentation
bin11001011110110110…
…10011011011111100
31022022102102220102110
430233123103123330
5211004212313130
610141302254020
7663006040533
oct145733233374
938272386373
1013680588540
115890376723
122799727310
1313a03a5808
1493accd31a
1555108cab0
hex32f6d36fc

13680588540 has 24 divisors (see below), whose sum is σ = 38305648080. Its totient is φ = 3648156928.

The previous prime is 13680588529. The next prime is 13680588611. The reversal of 13680588540 is 4588508631.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13680588540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114004845 + ... + 114004964.

It is an arithmetic number, because the mean of its divisors is an integer number (1596068670).

Almost surely, 213680588540 is an apocalyptic number.

13680588540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13680588540 is an abundant number, since it is smaller than the sum of its proper divisors (24625059540).

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

13680588540 is a wasteful number, since it uses less digits than its factorization.

13680588540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228009821 (or 228009819 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 13680588540 in words is "thirteen billion, six hundred eighty million, five hundred eighty-eight thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 228009809 456019618 684029427 912039236 1140049045 1368058854 2280098090 2736117708 3420147135 4560196180 6840294270 13680588540