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5215157 = 29179833
BaseRepresentation
bin10011111001001110110101
3100210221211222
4103321032311
52313341112
6303440125
762220353
oct23711665
910727758
105215157
112a42252
1218b6045
1311079bc
1499a7d3
156d0372
hex4f93b5

5215157 has 4 divisors (see below), whose sum is σ = 5395020. Its totient is φ = 5035296.

The previous prime is 5215151. The next prime is 5215183. The reversal of 5215157 is 7515125.

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 3066001 + 2149156 = 1751^2 + 1466^2 .

It is a cyclic number.

It is not a de Polignac number, because 5215157 - 216 = 5149621 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 (5215151) 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, 89888 + ... + 89945.

It is an arithmetic number, because the mean of its divisors is an integer number (1348755).

Almost surely, 25215157 is an apocalyptic number.

It is an amenable number.

5215157 is a deficient number, since it is larger than the sum of its proper divisors (179863).

5215157 is a wasteful number, since it uses less digits than its factorization.

5215157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179862.

The product of its digits is 1750, while the sum is 26.

The square root of 5215157 is about 2283.6718240588. The cubic root of 5215157 is about 173.4159858117.

Subtracting 5215157 from its reverse (7515125), we obtain a cube (2299968 = 1323).

The spelling of 5215157 in words is "five million, two hundred fifteen thousand, one hundred fifty-seven".

Divisors: 1 29 179833 5215157