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13130490 = 235439997
BaseRepresentation
bin110010000101…
…101011111010
3220201002122110
4302011223322
511330133430
61145233150
7216415212
oct62055372
926632573
1013130490
11745914a
1244927b6
132949729
141a5b242
1512457b0
hexc85afa

13130490 has 32 divisors (see below), whose sum is σ = 31616640. Its totient is φ = 3489984.

The previous prime is 13130489. The next prime is 13130503. The reversal of 13130490 is 9403131.

It is an unprimeable number.

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, 12672 + ... + 13668.

It is an arithmetic number, because the mean of its divisors is an integer number (988020).

Almost surely, 213130490 is an apocalyptic number.

13130490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13130490 is an abundant number, since it is smaller than the sum of its proper divisors (18486150).

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

13130490 is a wasteful number, since it uses less digits than its factorization.

13130490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 13130490 is about 3623.6017993152. The cubic root of 13130490 is about 235.9175834978.

The spelling of 13130490 in words is "thirteen million, one hundred thirty thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 439 878 997 1317 1994 2195 2634 2991 4390 4985 5982 6585 9970 13170 14955 29910 437683 875366 1313049 2188415 2626098 4376830 6565245 13130490