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15068897 = 101149197
BaseRepresentation
bin111001011110…
…111011100001
31001100120122022
4321132323201
512324201042
61254551225
7242040434
oct71367341
931316568
1015068897
118562538
125068515
133177b0c
14200381b
1514c9cd2
hexe5eee1

15068897 has 4 divisors (see below), whose sum is σ = 15218196. Its totient is φ = 14919600.

The previous prime is 15068869. The next prime is 15068909. The reversal of 15068897 is 79886051.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7054336 + 8014561 = 2656^2 + 2831^2 .

It is a cyclic number.

It is not a de Polignac number, because 15068897 - 210 = 15067873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15068297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74498 + ... + 74699.

It is an arithmetic number, because the mean of its divisors is an integer number (3804549).

Almost surely, 215068897 is an apocalyptic number.

It is an amenable number.

15068897 is a deficient number, since it is larger than the sum of its proper divisors (149299).

15068897 is a wasteful number, since it uses less digits than its factorization.

15068897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149298.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 15068897 is about 3881.8677205696. The cubic root of 15068897 is about 246.9982188292.

The spelling of 15068897 in words is "fifteen million, sixty-eight thousand, eight hundred ninety-seven".

Divisors: 1 101 149197 15068897