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13255120 = 245223743
BaseRepresentation
bin110010100100…
…000111010000
3220221102121101
4302210013100
511343130440
61152034144
7220444444
oct62440720
926842541
1013255120
11753384a
124532954
132991388
141a90824
15126c69a
hexca41d0

13255120 has 40 divisors (see below), whose sum is σ = 30998016. Its totient is φ = 5271168.

The previous prime is 13255111. The next prime is 13255127. The reversal of 13255120 is 2155231.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13255127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17469 + ... + 18211.

Almost surely, 213255120 is an apocalyptic number.

13255120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13255120 is an abundant number, since it is smaller than the sum of its proper divisors (17742896).

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

13255120 is a wasteful number, since it uses less digits than its factorization.

13255120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 13255120 is about 3640.7581628007. The cubic root of 13255120 is about 236.6616499190.

The spelling of 13255120 in words is "thirteen million, two hundred fifty-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 223 446 743 892 1115 1486 1784 2230 2972 3568 3715 4460 5944 7430 8920 11888 14860 17840 29720 59440 165689 331378 662756 828445 1325512 1656890 2651024 3313780 6627560 13255120