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238637052 = 223223288209
BaseRepresentation
bin11100011100101…
…00111111111100
3121122001000111100
432032110333330
5442042341202
635402453100
75625244563
oct1616247774
9548030440
10238637052
11112782605
1267b04190
133a594674
142399cbda
1515e3c41c
hexe394ffc

238637052 has 36 divisors (see below), whose sum is σ = 629450640. Its totient is φ = 76086912.

The previous prime is 238637033. The next prime is 238637089. The reversal of 238637052 is 250736832.

238637052 is a `hidden beast` number, since 238 + 6 + 370 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 238636998 and 238637016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143277 + ... + 144932.

It is an arithmetic number, because the mean of its divisors is an integer number (17484740).

Almost surely, 2238637052 is an apocalyptic number.

It is an amenable number.

238637052 is an abundant number, since it is smaller than the sum of its proper divisors (390813588).

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

238637052 is a wasteful number, since it uses less digits than its factorization.

238637052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288242 (or 288237 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 238637052 is about 15447.8817965441. The cubic root of 238637052 is about 620.2678793864.

The spelling of 238637052 in words is "two hundred thirty-eight million, six hundred thirty-seven thousand, fifty-two".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 138 207 276 414 828 288209 576418 864627 1152836 1729254 2593881 3458508 5187762 6628807 10375524 13257614 19886421 26515228 39772842 59659263 79545684 119318526 238637052