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252444200 = 23521262221
BaseRepresentation
bin11110000101111…
…11111000101000
3122121000111100012
433002333320220
51004111203300
641014431052
76153511631
oct1702777050
9577014305
10252444200
1111a553078
1270662488
13403ba088
1425754888
1517268435
hexf0bfe28

252444200 has 24 divisors (see below), whose sum is σ = 586933230. Its totient is φ = 100977600.

The previous prime is 252444197. The next prime is 252444211. The reversal of 252444200 is 2444252.

It can be written as a sum of positive squares in 3 ways, for example, as 173554276 + 78889924 = 13174^2 + 8882^2 .

It is a super-2 number, since 2×2524442002 = 127456148227280000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 630911 + ... + 631310.

Almost surely, 2252444200 is an apocalyptic number.

252444200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252444200 is an abundant number, since it is smaller than the sum of its proper divisors (334489030).

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

252444200 is a wasteful number, since it uses less digits than its factorization.

252444200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262237 (or 1262228 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 252444200 is about 15888.4926912530. The cubic root of 252444200 is about 632.0068698180.

Adding to 252444200 its reverse (2444252), we get a palindrome (254888452).

The spelling of 252444200 in words is "two hundred fifty-two million, four hundred forty-four thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1262221 2524442 5048884 6311105 10097768 12622210 25244420 31555525 50488840 63111050 126222100 252444200