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256232485 = 5434725357
BaseRepresentation
bin11110100010111…
…00110000100101
3122212010221220001
433101130300211
51011043414420
641231541301
76230640325
oct1721346045
9585127801
10256232485
11121700293
127198a831
1341115472
142605d285
1517765b0a
hexf45cc25

256232485 has 16 divisors (see below), whose sum is σ = 321336576. Its totient is φ = 195951168.

The previous prime is 256232477. The next prime is 256232491. The reversal of 256232485 is 584232652.

256232485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 256232485 - 23 = 256232477 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 15 ways as a sum of consecutive naturals, for example, 2574 + ... + 22783.

It is an arithmetic number, because the mean of its divisors is an integer number (20083536).

Almost surely, 2256232485 is an apocalyptic number.

It is an amenable number.

256232485 is a deficient number, since it is larger than the sum of its proper divisors (65104091).

256232485 is a wasteful number, since it uses less digits than its factorization.

256232485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25452.

The product of its digits is 115200, while the sum is 37.

The square root of 256232485 is about 16007.2635075456. The cubic root of 256232485 is about 635.1525745758.

The spelling of 256232485 in words is "two hundred fifty-six million, two hundred thirty-two thousand, four hundred eighty-five".

Divisors: 1 5 43 47 215 235 2021 10105 25357 126785 1090351 1191779 5451755 5958895 51246497 256232485