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283994725 = 5271622827
BaseRepresentation
bin10000111011010…
…110101001100101
3201210101102112011
4100323112221211
51040200312400
644102554221
710015625650
oct2073265145
9653342464
10283994725
11136342493
127b138971
1346ab5a21
1429a08897
1519deb8ba
hex10ed6a65

283994725 has 12 divisors (see below), whose sum is σ = 402461344. Its totient is φ = 194739120.

The previous prime is 283994717. The next prime is 283994749. The reversal of 283994725 is 527499382.

It is not a de Polignac number, because 283994725 - 23 = 283994717 is a prime.

It is a Duffinian number.

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, 811239 + ... + 811588.

Almost surely, 2283994725 is an apocalyptic number.

283994725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

283994725 is a deficient number, since it is larger than the sum of its proper divisors (118466619).

283994725 is a wasteful number, since it uses less digits than its factorization.

283994725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622844 (or 1622839 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The square root of 283994725 is about 16852.1430387948. The cubic root of 283994725 is about 657.3097754823.

It can be divided in two parts, 28399 and 4725, that added together give a square (33124 = 1822).

The spelling of 283994725 in words is "two hundred eighty-three million, nine hundred ninety-four thousand, seven hundred twenty-five".

Divisors: 1 5 7 25 35 175 1622827 8114135 11359789 40570675 56798945 283994725