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13240288 = 25413759
BaseRepresentation
bin110010100000…
…011111100000
3220220200021001
4302200133200
511342142123
61151441344
7220353265
oct62403740
926820231
1013240288
117523696
124526254
1329876b9
141a8926c
1512680ad
hexca07e0

13240288 has 12 divisors (see below), whose sum is σ = 26066880. Its totient is φ = 6620128.

The previous prime is 13240231. The next prime is 13240291. The reversal of 13240288 is 88204231.

13240288 is nontrivially palindromic in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206848 + ... + 206911.

It is an arithmetic number, because the mean of its divisors is an integer number (2172240).

Almost surely, 213240288 is an apocalyptic number.

It is an amenable number.

13240288 is a deficient number, since it is larger than the sum of its proper divisors (12826592).

13240288 is an equidigital number, since it uses as much as digits as its factorization.

13240288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413769 (or 413761 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 13240288 is about 3638.7206542960. The cubic root of 13240288 is about 236.5733450311.

The spelling of 13240288 in words is "thirteen million, two hundred forty thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 32 413759 827518 1655036 3310072 6620144 13240288