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15422113 = 722910853
BaseRepresentation
bin111010110101…
…001010100001
31002000112011101
4322311022201
512422001423
61310314401
7245041300
oct72651241
932015141
1015422113
118783953
1251b8a01
13326c815
142096437
1515497ad
hexeb52a1

15422113 has 12 divisors (see below), whose sum is σ = 18560340. Its totient is φ = 12761952.

The previous prime is 15422101. The next prime is 15422117. The reversal of 15422113 is 31122451.

15422113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8196769 + 7225344 = 2863^2 + 2688^2 .

It is a de Polignac number, because none of the positive numbers 2k-15422113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15422117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4006 + ... + 6847.

It is an arithmetic number, because the mean of its divisors is an integer number (1546695).

Almost surely, 215422113 is an apocalyptic number.

It is an amenable number.

15422113 is a deficient number, since it is larger than the sum of its proper divisors (3138227).

15422113 is a wasteful number, since it uses less digits than its factorization.

15422113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10896 (or 10889 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 15422113 is about 3927.0998204782. The cubic root of 15422113 is about 248.9132184694.

Adding to 15422113 its reverse (31122451), we get a palindrome (46544564).

It can be divided in two parts, 1542 and 2113, that added together give a triangular number (3655 = T85).

The spelling of 15422113 in words is "fifteen million, four hundred twenty-two thousand, one hundred thirteen".

Divisors: 1 7 29 49 203 1421 10853 75971 314737 531797 2203159 15422113