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260731488 = 25310924917
BaseRepresentation
bin11111000101001…
…11001001100000
3200011121112100210
433202213021200
51013221401423
641512214120
76314116053
oct1742471140
9604545323
10260731488
111241a3476
127339a340
134202c1b4
14268b0a9a
1517d53b93
hexf8a7260

260731488 has 48 divisors (see below), whose sum is σ = 690726960. Its totient is φ = 86109696.

The previous prime is 260731487. The next prime is 260731517. The reversal of 260731488 is 884137062.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260731487) 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, 1995 + ... + 22922.

It is an arithmetic number, because the mean of its divisors is an integer number (14390145).

Almost surely, 2260731488 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 260731488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345363480).

260731488 is an abundant number, since it is smaller than the sum of its proper divisors (429995472).

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

260731488 is a wasteful number, since it uses less digits than its factorization.

260731488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25039 (or 25031 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 260731488 is about 16147.1820451743. The cubic root of 260731488 is about 638.8484239604.

The spelling of 260731488 in words is "two hundred sixty million, seven hundred thirty-one thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 109 218 327 436 654 872 1308 1744 2616 3488 5232 10464 24917 49834 74751 99668 149502 199336 299004 398672 598008 797344 1196016 2392032 2715953 5431906 8147859 10863812 16295718 21727624 32591436 43455248 65182872 86910496 130365744 260731488