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61254256 = 247717703
BaseRepresentation
bin1110100110101…
…0101001110000
311021021001001011
43221222221300
5111140114011
610024520304
71342436560
oct351525160
9137231034
1061254256
1131638258
1218620094
13c8c8b2b
1481c6da0
15559e621
hex3a6aa70

61254256 has 40 divisors (see below), whose sum is σ = 137562624. Its totient is φ = 25878720.

The previous prime is 61254253. The next prime is 61254289. The reversal of 61254256 is 65245216.

61254256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×612542562 = 7504167756227072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61254251) 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 7 ways as a sum of consecutive naturals, for example, 4101 + ... + 11803.

Almost surely, 261254256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61254256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68781312).

61254256 is an abundant number, since it is smaller than the sum of its proper divisors (76308368).

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

61254256 is a wasteful number, since it uses less digits than its factorization.

61254256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7789 (or 7783 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 61254256 is about 7826.5098223921. The cubic root of 61254256 is about 394.1958880600.

The spelling of 61254256 in words is "sixty-one million, two hundred fifty-four thousand, two hundred fifty-six".

Divisors: 1 2 4 7 8 14 16 28 56 71 112 142 284 497 568 994 1136 1988 3976 7703 7952 15406 30812 53921 61624 107842 123248 215684 431368 546913 862736 1093826 2187652 3828391 4375304 7656782 8750608 15313564 30627128 61254256