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252051460 = 22512602573
BaseRepresentation
bin11110000011000…
…00000000000100
3122120021112121021
433001200000010
51004011121320
641002200524
76150254623
oct1701400004
9576245537
10252051460
1111a304aa1
12704b3144
13402b039b
14256916ba
15171dbdaa
hexf060004

252051460 has 12 divisors (see below), whose sum is σ = 529308108. Its totient is φ = 100820576.

The previous prime is 252051433. The next prime is 252051461. The reversal of 252051460 is 64150252.

It can be written as a sum of positive squares in 2 ways, for example, as 149475076 + 102576384 = 12226^2 + 10128^2 .

It is not an unprimeable number, because it can be changed into a prime (252051461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6301267 + ... + 6301306.

It is an arithmetic number, because the mean of its divisors is an integer number (44109009).

Almost surely, 2252051460 is an apocalyptic number.

252051460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252051460 is an abundant number, since it is smaller than the sum of its proper divisors (277256648).

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

252051460 is a wasteful number, since it uses less digits than its factorization.

252051460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12602582 (or 12602580 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 252051460 is about 15876.1286212981. The cubic root of 252051460 is about 631.6789515305.

The spelling of 252051460 in words is "two hundred fifty-two million, fifty-one thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 12602573 25205146 50410292 63012865 126025730 252051460