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15068413 = 27155603
BaseRepresentation
bin111001011110…
…110011111101
31001100112222101
4321132303331
512324142123
61254545101
7242036143
oct71366375
931315871
1015068413
118562138
125068191
133177829
142003593
1514c9aad
hexe5ecfd

15068413 has 4 divisors (see below), whose sum is σ = 15124288. Its totient is φ = 15012540.

The previous prime is 15068411. The next prime is 15068419. The reversal of 15068413 is 31486051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31486051 = 109328807.

It is a cyclic number.

It is not a de Polignac number, because 15068413 - 21 = 15068411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15068411) 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 3 ways as a sum of consecutive naturals, for example, 27531 + ... + 28072.

It is an arithmetic number, because the mean of its divisors is an integer number (3781072).

Almost surely, 215068413 is an apocalyptic number.

It is an amenable number.

15068413 is a deficient number, since it is larger than the sum of its proper divisors (55875).

15068413 is an equidigital number, since it uses as much as digits as its factorization.

15068413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55874.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 15068413 is about 3881.8053789442. The cubic root of 15068413 is about 246.9955743441.

The spelling of 15068413 in words is "fifteen million, sixty-eight thousand, four hundred thirteen".

Divisors: 1 271 55603 15068413