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255429970 = 2529880793
BaseRepresentation
bin11110011100110…
…00110101010010
3122210122012001021
433032120311102
51010342224340
641202430054
76221055535
oct1716306522
9583565037
10255429970
11121202354
127166232a
1340bc40c3
1425cd0a1c
1517657e4a
hexf398d52

255429970 has 16 divisors (see below), whose sum is σ = 475628760. Its totient is φ = 98648704.

The previous prime is 255429953. The next prime is 255429971. The reversal of 255429970 is 79924552.

It can be written as a sum of positive squares in 4 ways, for example, as 209583529 + 45846441 = 14477^2 + 6771^2 .

It is not an unprimeable number, because it can be changed into a prime (255429971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440107 + ... + 440686.

Almost surely, 2255429970 is an apocalyptic number.

255429970 is a deficient number, since it is larger than the sum of its proper divisors (220198790).

255429970 is a wasteful number, since it uses less digits than its factorization.

255429970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880829.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 255429970 is about 15982.1766352396. The cubic root of 255429970 is about 634.4887860636.

The spelling of 255429970 in words is "two hundred fifty-five million, four hundred twenty-nine thousand, nine hundred seventy".

Divisors: 1 2 5 10 29 58 145 290 880793 1761586 4403965 8807930 25542997 51085994 127714985 255429970