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260464069 = 1496532677
BaseRepresentation
bin11111000011001…
…01110111000101
3200011002221112101
433201211313011
51013134322234
641502352101
76311623315
oct1741456705
9604087471
10260464069
11124030568
127328b631
1341c67568
1426841445
1517cee814
hexf865dc5

260464069 has 8 divisors (see below), whose sum is σ = 262711800. Its totient is φ = 258223296.

The previous prime is 260464063. The next prime is 260464081. The reversal of 260464069 is 960464062.

It can be written as a sum of positive squares in 4 ways, for example, as 21390625 + 239073444 = 4625^2 + 15462^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-260464069 is a prime.

It is a super-2 number, since 2×2604640692 = 135683062480073522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260464063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95959 + ... + 98635.

It is an arithmetic number, because the mean of its divisors is an integer number (32838975).

Almost surely, 2260464069 is an apocalyptic number.

It is an amenable number.

260464069 is a deficient number, since it is larger than the sum of its proper divisors (2247731).

260464069 is a wasteful number, since it uses less digits than its factorization.

260464069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 260464069 is about 16138.8992499489. The cubic root of 260464069 is about 638.6299378227.

The spelling of 260464069 in words is "two hundred sixty million, four hundred sixty-four thousand, sixty-nine".

Divisors: 1 149 653 2677 97297 398873 1748081 260464069