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260025090 = 23513251287
BaseRepresentation
bin11110111111110…
…10101100000010
3200010021122100220
433133322230002
51013031300330
641445123510
76305114433
oct1737725402
9603248326
10260025090
11123860776
12730b9596
1341b42800
142676948a
1517c64710
hexf7fab02

260025090 has 48 divisors (see below), whose sum is σ = 675770688. Its totient is φ = 64004928.

The previous prime is 260025067. The next prime is 260025113. The reversal of 260025090 is 90520062.

It is an interprime number because it is at equal distance from previous prime (260025067) and next prime (260025113).

It is a super-2 number, since 2×2600250902 = 135226094859016200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 260025090.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20574 + ... + 30713.

It is an arithmetic number, because the mean of its divisors is an integer number (14078556).

Almost surely, 2260025090 is an apocalyptic number.

260025090 is an abundant number, since it is smaller than the sum of its proper divisors (415745598).

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

260025090 is a wasteful number, since it uses less digits than its factorization.

260025090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51323 (or 51310 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 260025090 is about 16125.2934857013. The cubic root of 260025090 is about 638.2709596145.

It can be divided in two parts, 2600250 and 90, that added together give a triangular number (2600340 = T2280).

The spelling of 260025090 in words is "two hundred sixty million, twenty-five thousand, ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 169 195 338 390 507 845 1014 1690 2535 5070 51287 102574 153861 256435 307722 512870 666731 769305 1333462 1538610 2000193 3333655 4000386 6667310 8667503 10000965 17335006 20001930 26002509 43337515 52005018 86675030 130012545 260025090