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5155285 = 51031057
BaseRepresentation
bin10011101010100111010101
3100200220201111
4103222213111
52304432120
6302255021
761550662
oct23524725
910626644
105155285
112a01273
121887471
1310b6685
14982a69
156bc75a
hex4ea9d5

5155285 has 4 divisors (see below), whose sum is σ = 6186348. Its totient is φ = 4124224.

The previous prime is 5155279. The next prime is 5155307. The reversal of 5155285 is 5825515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5825515 = 51165103.

It can be written as a sum of positive squares in 2 ways, for example, as 2588881 + 2566404 = 1609^2 + 1602^2 .

It is a cyclic number.

It is not a de Polignac number, because 5155285 - 23 = 5155277 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515524 + ... + 515533.

It is an arithmetic number, because the mean of its divisors is an integer number (1546587).

Almost surely, 25155285 is an apocalyptic number.

It is an amenable number.

5155285 is a deficient number, since it is larger than the sum of its proper divisors (1031063).

5155285 is a wasteful number, since it uses less digits than its factorization.

5155285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031062.

The product of its digits is 10000, while the sum is 31.

The square root of 5155285 is about 2270.5252696237. The cubic root of 5155285 is about 172.7498026097.

The spelling of 5155285 in words is "five million, one hundred fifty-five thousand, two hundred eighty-five".

Divisors: 1 5 1031057 5155285