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13572091 = 131139239
BaseRepresentation
bin110011110001…
…011111111011
3221112112102001
4303301133323
511433301331
61202521431
7223234531
oct63613773
927475361
1013572091
11772aa05
124666277
132a72730
141b34151
1512d1561
hexcf17fb

13572091 has 8 divisors (see below), whose sum is σ = 14747040. Its totient is φ = 12415872.

The previous prime is 13572089. The next prime is 13572101. The reversal of 13572091 is 19027531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13572091 - 21 = 13572089 is a prime.

It is a super-2 number, since 2×135720912 = 368403308224562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13572011) by changing a digit.

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, 3151 + ... + 6088.

It is an arithmetic number, because the mean of its divisors is an integer number (1843380).

Almost surely, 213572091 is an apocalyptic number.

13572091 is a deficient number, since it is larger than the sum of its proper divisors (1174949).

13572091 is a wasteful number, since it uses less digits than its factorization.

13572091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9365.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 13572091 is about 3684.0318945416. The cubic root of 13572091 is about 238.5332475365.

The spelling of 13572091 in words is "thirteen million, five hundred seventy-two thousand, ninety-one".

Divisors: 1 13 113 1469 9239 120107 1044007 13572091