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260260055 = 51117278353
BaseRepresentation
bin11111000001101…
…00000011010111
3200010201120200022
433200310003113
51013111310210
641454135355
76310113446
oct1740640327
9603646608
10260260055
11123a01260
12731b155b
1341bc5743
14267cad5d
1517cae155
hexf8340d7

260260055 has 16 divisors (see below), whose sum is σ = 360746784. Its totient is φ = 178145280.

The previous prime is 260260003. The next prime is 260260057. The reversal of 260260055 is 550062062.

It is a happy number.

260260055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 260260055 - 28 = 260259799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260260057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138242 + ... + 140111.

It is an arithmetic number, because the mean of its divisors is an integer number (22546674).

Almost surely, 2260260055 is an apocalyptic number.

260260055 is a deficient number, since it is larger than the sum of its proper divisors (100486729).

260260055 is a wasteful number, since it uses less digits than its factorization.

260260055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278386.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 260260055 is about 16132.5774444135. The cubic root of 260260055 is about 638.4631541268.

The spelling of 260260055 in words is "two hundred sixty million, two hundred sixty thousand, fifty-five".

Divisors: 1 5 11 17 55 85 187 935 278353 1391765 3061883 4732001 15309415 23660005 52052011 260260055