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13893297 = 311421009
BaseRepresentation
bin110100111111…
…111010110001
3222010212000120
4310333322301
512024041142
61213440453
7226043145
oct64777261
928125016
1013893297
11792a270
1247a0129
132b559b2
141bb9225
1513467ec
hexd3feb1

13893297 has 8 divisors (see below), whose sum is σ = 20208480. Its totient is φ = 8420160.

The previous prime is 13893293. The next prime is 13893323. The reversal of 13893297 is 79239831.

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

It is not a de Polignac number, because 13893297 - 22 = 13893293 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13893293) 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, 210472 + ... + 210537.

It is an arithmetic number, because the mean of its divisors is an integer number (2526060).

Almost surely, 213893297 is an apocalyptic number.

It is an amenable number.

13893297 is a deficient number, since it is larger than the sum of its proper divisors (6315183).

13893297 is a wasteful number, since it uses less digits than its factorization.

13893297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421023.

The product of its digits is 81648, while the sum is 42.

The square root of 13893297 is about 3727.3713257469. The cubic root of 13893297 is about 240.4003560801.

The spelling of 13893297 in words is "thirteen million, eight hundred ninety-three thousand, two hundred ninety-seven".

Divisors: 1 3 11 33 421009 1263027 4631099 13893297