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255105004 = 22711853971
BaseRepresentation
bin11110011010010…
…01011111101100
3122210000200021111
433031021133230
51010301330004
641151441404
76215233240
oct1715113754
9583020244
10255105004
11121000190
1271526264
1340b0c20b
1425c48420
15175e1a04
hexf3497ec

255105004 has 48 divisors (see below), whose sum is σ = 557819136. Its totient is φ = 99172800.

The previous prime is 255104977. The next prime is 255105023. The reversal of 255105004 is 400501552.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262239 + ... + 263209.

It is an arithmetic number, because the mean of its divisors is an integer number (11621232).

Almost surely, 2255105004 is an apocalyptic number.

It is an amenable number.

255105004 is an abundant number, since it is smaller than the sum of its proper divisors (302714132).

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

255105004 is a wasteful number, since it uses less digits than its factorization.

255105004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846 (or 1844 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 255105004 is about 15972.0068870509. The cubic root of 255105004 is about 634.2195997135.

Adding to 255105004 its reverse (400501552), we get a palindrome (655606556).

The spelling of 255105004 in words is "two hundred fifty-five million, one hundred five thousand, four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 853 971 1706 1942 3412 3884 5971 6797 9383 10681 11942 13594 18766 21362 23884 27188 37532 42724 65681 74767 131362 149534 262724 299068 828263 1656526 3313052 5797841 9110893 11595682 18221786 23191364 36443572 63776251 127552502 255105004