Search a number
-
+
255136486 = 21127091487
BaseRepresentation
bin11110011010100…
…01001011100110
3122210002021110111
433031101023212
51010303331421
641152243234
76215424103
oct1715211346
9583067414
10255136486
11121021900
127154051a
1340b20647
1425c55aaa
15175eaee1
hexf3512e6

255136486 has 24 divisors (see below), whose sum is σ = 421535520. Its totient is φ = 115729680.

The previous prime is 255136477. The next prime is 255136549. The reversal of 255136486 is 684631552.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 170835 + ... + 172321.

It is an arithmetic number, because the mean of its divisors is an integer number (17563980).

Almost surely, 2255136486 is an apocalyptic number.

255136486 is a deficient number, since it is larger than the sum of its proper divisors (166399034).

255136486 is a wasteful number, since it uses less digits than its factorization.

255136486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220 (or 2209 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 255136486 is about 15972.9923934121. The cubic root of 255136486 is about 634.2456878992.

The spelling of 255136486 in words is "two hundred fifty-five million, one hundred thirty-six thousand, four hundred eighty-six".

Divisors: 1 2 11 22 121 242 709 1418 1487 2974 7799 15598 16357 32714 85789 171578 179927 359854 1054283 2108566 11597113 23194226 127568243 255136486