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260542560 = 2535542797
BaseRepresentation
bin11111000011110…
…01000001100000
3200011020221012110
433201321001200
51013144330220
641504155320
76312401205
oct1741710140
9604227173
10260542560
11124084533
1273308b40
1341c941c5
1426861cac
1517d17be0
hexf879060

260542560 has 48 divisors (see below), whose sum is σ = 820710576. Its totient is φ = 69477888.

The previous prime is 260542559. The next prime is 260542603. The reversal of 260542560 is 65245062.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270919 + ... + 271878.

It is an arithmetic number, because the mean of its divisors is an integer number (17098137).

Almost surely, 2260542560 is an apocalyptic number.

260542560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

260542560 is an abundant number, since it is smaller than the sum of its proper divisors (560168016).

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

260542560 is a wasteful number, since it uses less digits than its factorization.

260542560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542815 (or 542807 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 260542560 is about 16141.3308001540. The cubic root of 260542560 is about 638.6940818820.

The spelling of 260542560 in words is "two hundred sixty million, five hundred forty-two thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 542797 1085594 1628391 2171188 2713985 3256782 4342376 5427970 6513564 8141955 8684752 10855940 13027128 16283910 17369504 21711880 26054256 32567820 43423760 52108512 65135640 86847520 130271280 260542560