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5210105 = 51042021
BaseRepresentation
bin10011110111111111111001
3100210200220212
4103313333321
52313210410
6303400505
762166545
oct23677771
910720825
105210105
112a3947a
1218b3135
131105604
14998a25
156cdb05
hex4f7ff9

5210105 has 4 divisors (see below), whose sum is σ = 6252132. Its totient is φ = 4168080.

The previous prime is 5210099. The next prime is 5210119. The reversal of 5210105 is 5010125.

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 2262016 + 2948089 = 1504^2 + 1717^2 .

It is not a de Polignac number, because 5210105 - 28 = 5209849 is a prime.

It is a super-2 number, since 2×52101052 = 54290388222050, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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 5210105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521006 + ... + 521015.

It is an arithmetic number, because the mean of its divisors is an integer number (1563033).

Almost surely, 25210105 is an apocalyptic number.

It is an amenable number.

5210105 is a deficient number, since it is larger than the sum of its proper divisors (1042027).

5210105 is a wasteful number, since it uses less digits than its factorization.

5210105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042026.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 5210105 is about 2282.5654426544. The cubic root of 5210105 is about 173.3599708404.

It can be divided in two parts, 5 and 210105, that multiplied together give a triangular number (1050525 = T1449).

The spelling of 5210105 in words is "five million, two hundred ten thousand, one hundred five".

Divisors: 1 5 1042021 5210105