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13272389 = 131278039
BaseRepresentation
bin110010101000…
…010101000101
3220222022021222
4302220111011
511344204024
61152250125
7220546004
oct62502505
926868258
1013272389
117545819
124540945
1329991b0
141a96c3b
15127285e
hexca8545

13272389 has 8 divisors (see below), whose sum is σ = 14407680. Its totient is φ = 12153456.

The previous prime is 13272383. The next prime is 13272407. The reversal of 13272389 is 98327231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13272389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13272383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2369 + ... + 5670.

It is an arithmetic number, because the mean of its divisors is an integer number (1800960).

Almost surely, 213272389 is an apocalyptic number.

It is an amenable number.

13272389 is a deficient number, since it is larger than the sum of its proper divisors (1135291).

13272389 is a wasteful number, since it uses less digits than its factorization.

13272389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8179.

The product of its digits is 18144, while the sum is 35.

The square root of 13272389 is about 3643.1290122640. The cubic root of 13272389 is about 236.7643809513.

The spelling of 13272389 in words is "thirteen million, two hundred seventy-two thousand, three hundred eighty-nine".

Divisors: 1 13 127 1651 8039 104507 1020953 13272389