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260380885 = 5316916433
BaseRepresentation
bin11111000010100…
…01100011010101
3200010221201102111
433201101203111
51013124142020
641500511021
76311125642
oct1741214325
9603851374
10260380885
11123a84016
127324b471
1341c3873b
142681cdc9
1517cd4d5a
hexf8518d5

260380885 has 8 divisors (see below), whose sum is σ = 312574680. Its totient is φ = 208226304.

The previous prime is 260380871. The next prime is 260380903. The reversal of 260380885 is 588083062.

260380885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 143784081 + 116596804 = 11991^2 + 10798^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 260380885 - 215 = 260348117 is a prime.

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, 7629 + ... + 24061.

It is an arithmetic number, because the mean of its divisors is an integer number (39071835).

Almost surely, 2260380885 is an apocalyptic number.

It is an amenable number.

260380885 is a deficient number, since it is larger than the sum of its proper divisors (52193795).

260380885 is a wasteful number, since it uses less digits than its factorization.

260380885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19607.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 260380885 is about 16136.3219167194. The cubic root of 260380885 is about 638.5619445044.

The spelling of 260380885 in words is "two hundred sixty million, three hundred eighty thousand, eight hundred eighty-five".

Divisors: 1 5 3169 15845 16433 82165 52076177 260380885