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13712280 = 2335114269
BaseRepresentation
bin110100010011…
…101110011000
3221210122201020
4310103232120
512002243110
61205522440
7224360331
oct64235630
927718636
1013712280
11781626a
124713420
132ac149a
141b6d288
15130cd70
hexd13b98

13712280 has 32 divisors (see below), whose sum is σ = 41137200. Its totient is φ = 3656576.

The previous prime is 13712269. The next prime is 13712299. The reversal of 13712280 is 8221731.

13712280 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13712280.

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, 57015 + ... + 57254.

Almost surely, 213712280 is an apocalyptic number.

13712280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13712280 is an abundant number, since it is smaller than the sum of its proper divisors (27424920).

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

13712280 is a wasteful number, since it uses less digits than its factorization.

13712280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114283 (or 114279 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 13712280 is about 3703.0095868091. The cubic root of 13712280 is about 239.3517227012.

The spelling of 13712280 in words is "thirteen million, seven hundred twelve thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 114269 228538 342807 457076 571345 685614 914152 1142690 1371228 1714035 2285380 2742456 3428070 4570760 6856140 13712280