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13240490 = 251638123
BaseRepresentation
bin110010100000…
…100010101010
3220220200112112
4302200202222
511342143430
61151442322
7220354004
oct62404252
926820475
1013240490
11752385a
1245263a2
132987813
141a89374
151268195
hexca08aa

13240490 has 16 divisors (see below), whose sum is σ = 23982048. Its totient is φ = 5263056.

The previous prime is 13240489. The next prime is 13240519. The reversal of 13240490 is 9404231.

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, 2432 + ... + 5691.

It is an arithmetic number, because the mean of its divisors is an integer number (1498878).

Almost surely, 213240490 is an apocalyptic number.

13240490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13240490 is a deficient number, since it is larger than the sum of its proper divisors (10741558).

13240490 is a wasteful number, since it uses less digits than its factorization.

13240490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8293.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 13240490 is about 3638.7484111986. The cubic root of 13240490 is about 236.5745481161.

The spelling of 13240490 in words is "thirteen million, two hundred forty thousand, four hundred ninety".

Divisors: 1 2 5 10 163 326 815 1630 8123 16246 40615 81230 1324049 2648098 6620245 13240490