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15068971 = 125911969
BaseRepresentation
bin111001011110…
…111100101011
31001100120202001
4321132330223
512324201341
61254551431
7242040601
oct71367453
931316661
1015068971
1185625a5
125068577
133177b68
142003871
1514c9d31
hexe5ef2b

15068971 has 4 divisors (see below), whose sum is σ = 15082200. Its totient is φ = 15055744.

The previous prime is 15068959. The next prime is 15068981. The reversal of 15068971 is 17986051.

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

It is a cyclic number.

It is not a de Polignac number, because 15068971 - 211 = 15066923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15068971.

It is not an unprimeable number, because it can be changed into a prime (15068981) 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, 4726 + ... + 7243.

It is an arithmetic number, because the mean of its divisors is an integer number (3770550).

Almost surely, 215068971 is an apocalyptic number.

15068971 is a deficient number, since it is larger than the sum of its proper divisors (13229).

15068971 is a wasteful number, since it uses less digits than its factorization.

15068971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13228.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 15068971 is about 3881.8772520522. The cubic root of 15068971 is about 246.9986231463.

The spelling of 15068971 in words is "fifteen million, sixty-eight thousand, nine hundred seventy-one".

Divisors: 1 1259 11969 15068971