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68470055 = 515787223
BaseRepresentation
bin1000001010011…
…00010100100111
311202211122020222
410011030110213
5120012020210
610443314555
71460662103
oct405142447
9152748228
1068470055
1135716625
121ab1ba5b
1311254334
149144903
156027655
hex414c527

68470055 has 8 divisors (see below), whose sum is σ = 82688352. Its totient is φ = 54426528.

The previous prime is 68470043. The next prime is 68470063. The reversal of 68470055 is 55007486.

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 68470055 - 26 = 68469991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68469997 and 68470024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42827 + ... + 44396.

It is an arithmetic number, because the mean of its divisors is an integer number (10336044).

Almost surely, 268470055 is an apocalyptic number.

68470055 is a deficient number, since it is larger than the sum of its proper divisors (14218297).

68470055 is a wasteful number, since it uses less digits than its factorization.

68470055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87385.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 68470055 is about 8274.6634372644. The cubic root of 68470055 is about 409.1038427710.

The spelling of 68470055 in words is "sixty-eight million, four hundred seventy thousand, fifty-five".

Divisors: 1 5 157 785 87223 436115 13694011 68470055