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13283890 = 253074327
BaseRepresentation
bin110010101011…
…001000110010
3220222220001221
4302223020302
511400041030
61152415254
7220624354
oct62531062
926886057
1013283890
117553424
12454752a
1329a14b9
141a9b0d4
151275e7a
hexcab232

13283890 has 16 divisors (see below), whose sum is σ = 23994432. Its totient is φ = 5295024.

The previous prime is 13283843. The next prime is 13283891. The reversal of 13283890 is 9838231.

It is not an unprimeable number, because it can be changed into a prime (13283891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 907 + ... + 5233.

It is an arithmetic number, because the mean of its divisors is an integer number (1499652).

Almost surely, 213283890 is an apocalyptic number.

13283890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13283890 is a deficient number, since it is larger than the sum of its proper divisors (10710542).

13283890 is a wasteful number, since it uses less digits than its factorization.

13283890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 13283890 is about 3644.7071212925. The cubic root of 13283890 is about 236.8327494767.

The spelling of 13283890 in words is "thirteen million, two hundred eighty-three thousand, eight hundred ninety".

Divisors: 1 2 5 10 307 614 1535 3070 4327 8654 21635 43270 1328389 2656778 6641945 13283890