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260055681 = 3175099131
BaseRepresentation
bin11111000000000…
…10001010000001
3200010100012022220
433200002022001
51013033240211
641445521253
76305302554
oct1740021201
9603305286
10260055681
11123881756
1273113229
1341b53702
142677669b
1517c6d806
hexf802281

260055681 has 8 divisors (see below), whose sum is σ = 367137504. Its totient is φ = 163172160.

The previous prime is 260055671. The next prime is 260055703. The reversal of 260055681 is 186550062.

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

It is not a de Polignac number, because 260055681 - 27 = 260055553 is a prime.

It is a super-2 number, since 2×2600556812 = 135257914440747522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (260055671) 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, 2549515 + ... + 2549616.

It is an arithmetic number, because the mean of its divisors is an integer number (45892188).

Almost surely, 2260055681 is an apocalyptic number.

It is an amenable number.

260055681 is a deficient number, since it is larger than the sum of its proper divisors (107081823).

260055681 is a wasteful number, since it uses less digits than its factorization.

260055681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5099151.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 260055681 is about 16126.2419986803. The cubic root of 260055681 is about 638.2959887136.

The spelling of 260055681 in words is "two hundred sixty million, fifty-five thousand, six hundred eighty-one".

Divisors: 1 3 17 51 5099131 15297393 86685227 260055681