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76129055 = 515225811
BaseRepresentation
bin1001000100110…
…10001100011111
312022020202102122
410202122030133
5123442112210
611315413155
71613041412
oct442321437
9168222378
1076129055
1139a77982
12215b41bb
1312a064a2
14a179b79
156a3bb55
hex489a31f

76129055 has 4 divisors (see below), whose sum is σ = 91354872. Its totient is φ = 60903240.

The previous prime is 76129033. The next prime is 76129063. The reversal of 76129055 is 55092167.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 76129055 - 212 = 76124959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7612901 + ... + 7612910.

It is an arithmetic number, because the mean of its divisors is an integer number (22838718).

Almost surely, 276129055 is an apocalyptic number.

76129055 is a deficient number, since it is larger than the sum of its proper divisors (15225817).

76129055 is a wasteful number, since it uses less digits than its factorization.

76129055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15225816.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 76129055 is about 8725.1965593905. The cubic root of 76129055 is about 423.8219834611.

The spelling of 76129055 in words is "seventy-six million, one hundred twenty-nine thousand, fifty-five".

Divisors: 1 5 15225811 76129055