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256214472 = 23310675603
BaseRepresentation
bin11110100010110…
…00010111001000
3122212010001011220
433101120113020
51011042330342
641231322040
76230533653
oct1721302710
9585101156
10256214472
111216987a8
1271980320
134110a1c7
142605689a
15177605ec
hexf4585c8

256214472 has 16 divisors (see below), whose sum is σ = 640536240. Its totient is φ = 85404816.

The previous prime is 256214471. The next prime is 256214479. The reversal of 256214472 is 274412652.

256214472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (256214471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5337778 + ... + 5337825.

It is an arithmetic number, because the mean of its divisors is an integer number (40033515).

Almost surely, 2256214472 is an apocalyptic number.

It is an amenable number.

256214472 is an abundant number, since it is smaller than the sum of its proper divisors (384321768).

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

256214472 is a wasteful number, since it uses less digits than its factorization.

256214472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10675612 (or 10675608 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 256214472 is about 16006.7008468329. The cubic root of 256214472 is about 635.1376906037.

It can be divided in two parts, 256214 and 472, that added together give a triangular number (256686 = T716).

The spelling of 256214472 in words is "two hundred fifty-six million, two hundred fourteen thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 10675603 21351206 32026809 42702412 64053618 85404824 128107236 256214472