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245001252 = 22320416771
BaseRepresentation
bin11101001101001…
…10110000100100
3122002000100112110
432212212300210
51000210020002
640151121020
76033322236
oct1646466044
9562010473
10245001252
1111632a081
126a073170
133b9b2372
1424778256
1516797e6c
hexe9a6c24

245001252 has 12 divisors (see below), whose sum is σ = 571669616. Its totient is φ = 81667080.

The previous prime is 245001241. The next prime is 245001283. The reversal of 245001252 is 252100542.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2450012522 = 120051226963135008, which contains 22 as substring.

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, 10208374 + ... + 10208397.

Almost surely, 2245001252 is an apocalyptic number.

It is an amenable number.

245001252 is an abundant number, since it is smaller than the sum of its proper divisors (326668364).

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

245001252 is a wasteful number, since it uses less digits than its factorization.

245001252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20416778 (or 20416776 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 245001252 is about 15652.5158361204. The cubic root of 245001252 is about 625.7335404393.

Adding to 245001252 its reverse (252100542), we get a palindrome (497101794).

It can be divided in two parts, 24500 and 1252, that added together give a palindrome (25752).

The spelling of 245001252 in words is "two hundred forty-five million, one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 20416771 40833542 61250313 81667084 122500626 245001252