Search a number
-
+
256514054 = 21771106261
BaseRepresentation
bin11110100101000…
…01100000000110
3122212200021010112
433102201200012
51011131422204
641241553022
76233222246
oct1722414006
9585607115
10256514054
11121882895
1271aa5772
13411b3684
14260d3b26
15177be26e
hexf4a1806

256514054 has 16 divisors (see below), whose sum is σ = 413146656. Its totient is φ = 119011200.

The previous prime is 256514053. The next prime is 256514087. The reversal of 256514054 is 450415652.

It is a self number, because there is not a number n which added to its sum of digits gives 256514054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256514051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50717 + ... + 55544.

It is an arithmetic number, because the mean of its divisors is an integer number (25821666).

Almost surely, 2256514054 is an apocalyptic number.

256514054 is a deficient number, since it is larger than the sum of its proper divisors (156632602).

256514054 is a wasteful number, since it uses less digits than its factorization.

256514054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106351.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 256514054 is about 16016.0561312703. The cubic root of 256514054 is about 635.3851417664.

The spelling of 256514054 in words is "two hundred fifty-six million, five hundred fourteen thousand, fifty-four".

Divisors: 1 2 17 34 71 142 1207 2414 106261 212522 1806437 3612874 7544531 15089062 128257027 256514054