Search a number
-
+
255731152 = 2431515587
BaseRepresentation
bin11110011111000…
…10010111010000
3122211012111012011
433033202113100
51010431344102
641213112304
76223451605
oct1717422720
9584174164
10255731152
11121398666
1271788694
1340c9b211
1425d6c6ac
15176b72d7
hexf3e25d0

255731152 has 20 divisors (see below), whose sum is σ = 511463296. Its totient is φ = 123740640.

The previous prime is 255731149. The next prime is 255731167. The reversal of 255731152 is 251137552.

255731152 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257298 + ... + 258289.

Almost surely, 2255731152 is an apocalyptic number.

It is an amenable number.

255731152 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

255731152 is a wasteful number, since it uses less digits than its factorization.

255731152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515626 (or 515620 counting only the distinct ones).

The product of its digits is 10500, while the sum is 31.

The square root of 255731152 is about 15991.5962930534. The cubic root of 255731152 is about 634.7380670991.

The spelling of 255731152 in words is "two hundred fifty-five million, seven hundred thirty-one thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 31 62 124 248 496 515587 1031174 2062348 4124696 8249392 15983197 31966394 63932788 127865576 255731152