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252202380 = 22354203373
BaseRepresentation
bin11110000100001…
…00110110001100
3122120120012121220
433002010312030
51004030434010
641005323340
76151453623
oct1702046614
9576505556
10252202380
1111a3a8421
1270566550
1340333ca1
14256d06ba
151721b970
hexf084d8c

252202380 has 24 divisors (see below), whose sum is σ = 706166832. Its totient is φ = 67253952.

The previous prime is 252202373. The next prime is 252202381. The reversal of 252202380 is 83202252.

It is a self number, because there is not a number n which added to its sum of digits gives 252202380.

It is not an unprimeable number, because it can be changed into a prime (252202381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2101627 + ... + 2101746.

It is an arithmetic number, because the mean of its divisors is an integer number (29423618).

Almost surely, 2252202380 is an apocalyptic number.

252202380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252202380 is an abundant number, since it is smaller than the sum of its proper divisors (453964452).

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

252202380 is a wasteful number, since it uses less digits than its factorization.

252202380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203385 (or 4203383 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 252202380 is about 15880.8809579318. The cubic root of 252202380 is about 631.8050024651.

The spelling of 252202380 in words is "two hundred fifty-two million, two hundred two thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4203373 8406746 12610119 16813492 21016865 25220238 42033730 50440476 63050595 84067460 126101190 252202380