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13387960 = 235334699
BaseRepresentation
bin110011000100…
…100010111000
3221012011211101
4303010202320
511411403320
61154541144
7221536645
oct63044270
927164741
1013387960
117614633
1245977b4
132a09991
141ac6dcc
151296c0a
hexcc48b8

13387960 has 16 divisors (see below), whose sum is σ = 30123000. Its totient is φ = 5355168.

The previous prime is 13387943. The next prime is 13387961. The reversal of 13387960 is 6978331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13387961) 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, 167310 + ... + 167389.

Almost surely, 213387960 is an apocalyptic number.

13387960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13387960 is an abundant number, since it is smaller than the sum of its proper divisors (16735040).

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

13387960 is a wasteful number, since it uses less digits than its factorization.

13387960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334710 (or 334706 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 13387960 is about 3658.9561352932. The cubic root of 13387960 is about 237.4496144269.

The spelling of 13387960 in words is "thirteen million, three hundred eighty-seven thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 334699 669398 1338796 1673495 2677592 3346990 6693980 13387960