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252072200 = 23521260361
BaseRepresentation
bin11110000011001…
…01000100001000
3122120022121001102
433001211010020
51004012302300
641002440532
76150402242
oct1701450410
9576277042
10252072200
1111a319636
1270503148
13402b9963
1425699092
15171e30d5
hexf065108

252072200 has 24 divisors (see below), whose sum is σ = 586068330. Its totient is φ = 100828800.

The previous prime is 252072199. The next prime is 252072211. The reversal of 252072200 is 2270252.

It can be written as a sum of positive squares in 3 ways, for example, as 178008964 + 74063236 = 13342^2 + 8606^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 629981 + ... + 630380.

Almost surely, 2252072200 is an apocalyptic number.

252072200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252072200 is an abundant number, since it is smaller than the sum of its proper divisors (333996130).

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

252072200 is a wasteful number, since it uses less digits than its factorization.

252072200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260377 (or 1260368 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 252072200 is about 15876.7817897709. The cubic root of 252072200 is about 631.6962769107.

The spelling of 252072200 in words is "two hundred fifty-two million, seventy-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 1260361 2520722 5041444 6301805 10082888 12603610 25207220 31509025 50414440 63018050 126036100 252072200