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13204990 = 252357413
BaseRepresentation
bin110010010111…
…110111111110
3220211212211201
4302113313332
511340024430
61151010114
7220145341
oct62276776
926755751
1013204990
1174aa117
12450993a
132974606
141a7a458
15125c8ca
hexc97dfe

13204990 has 16 divisors (see below), whose sum is σ = 24802848. Its totient is φ = 5052256.

The previous prime is 13204973. The next prime is 13205029. The reversal of 13204990 is 9940231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28477 + ... + 28936.

It is an arithmetic number, because the mean of its divisors is an integer number (1550178).

Almost surely, 213204990 is an apocalyptic number.

13204990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13204990 is a deficient number, since it is larger than the sum of its proper divisors (11597858).

13204990 is a wasteful number, since it uses less digits than its factorization.

13204990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57443.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 13204990 is about 3633.8670861769. The cubic root of 13204990 is about 236.3629267058.

The spelling of 13204990 in words is "thirteen million, two hundred four thousand, nine hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 57413 114826 287065 574130 1320499 2640998 6602495 13204990