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13207290 = 2352319141
BaseRepresentation
bin110010011000…
…011011111010
3220211222222220
4302120123322
511340113130
61151024510
7220155135
oct62303372
926758886
1013207290
117500918
12450b136
132975685
141a7b21c
15125d410
hexc986fa

13207290 has 32 divisors (see below), whose sum is σ = 33077376. Its totient is φ = 3368640.

The previous prime is 13207279. The next prime is 13207291. The reversal of 13207290 is 9270231.

It is a self number, because there is not a number n which added to its sum of digits gives 13207290.

It is not an unprimeable number, because it can be changed into a prime (13207291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8881 + ... + 10260.

It is an arithmetic number, because the mean of its divisors is an integer number (1033668).

Almost surely, 213207290 is an apocalyptic number.

13207290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13207290 is an abundant number, since it is smaller than the sum of its proper divisors (19870086).

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

13207290 is a wasteful number, since it uses less digits than its factorization.

13207290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19174.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 13207290 is about 3634.1835396688. The cubic root of 13207290 is about 236.3766488712.

The spelling of 13207290 in words is "thirteen million, two hundred seven thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 19141 38282 57423 95705 114846 191410 287115 440243 574230 880486 1320729 2201215 2641458 4402430 6603645 13207290