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10252520 = 235256313
BaseRepresentation
bin100111000111…
…000011101000
3201021212210222
4213013003220
510111040040
61003425212
7153100505
oct47070350
921255728
1010252520
115872963
123525208
13217c7a5
14150c4ac
15d77bb5
hex9c70e8

10252520 has 16 divisors (see below), whose sum is σ = 23068260. Its totient is φ = 4100992.

The previous prime is 10252519. The next prime is 10252523. The reversal of 10252520 is 2525201.

It can be written as a sum of positive squares in 2 ways, for example, as 9647236 + 605284 = 3106^2 + 778^2 .

It is a super-2 number, since 2×102525202 = 210228332700800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10252523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128117 + ... + 128196.

Almost surely, 210252520 is an apocalyptic number.

10252520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10252520 is an abundant number, since it is smaller than the sum of its proper divisors (12815740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10252520 is a wasteful number, since it uses less digits than its factorization.

10252520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256324 (or 256320 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 10252520 is about 3201.9556524099. The cubic root of 10252520 is about 217.2418746075.

Adding to 10252520 its reverse (2525201), we get a palindrome (12777721).

The spelling of 10252520 in words is "ten million, two hundred fifty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 256313 512626 1025252 1281565 2050504 2563130 5126260 10252520