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76500905 = 5131176937
BaseRepresentation
bin1001000111101…
…00111110101001
312022221122111212
410203310332221
5124041012110
611331402505
71616150465
oct443647651
9168848455
1076500905
113a201298
1221753435
1312b06810
14a2354a5
156ab1e05
hex48f4fa9

76500905 has 8 divisors (see below), whose sum is σ = 98862792. Its totient is φ = 56492928.

The previous prime is 76500899. The next prime is 76500911. The reversal of 76500905 is 50900567.

It is an interprime number because it is at equal distance from previous prime (76500899) and next prime (76500911).

It can be written as a sum of positive squares in 4 ways, for example, as 1297321 + 75203584 = 1139^2 + 8672^2 .

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 76500905 - 214 = 76484521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588404 + ... + 588533.

It is an arithmetic number, because the mean of its divisors is an integer number (12357849).

Almost surely, 276500905 is an apocalyptic number.

It is an amenable number.

76500905 is a deficient number, since it is larger than the sum of its proper divisors (22361887).

76500905 is a wasteful number, since it uses less digits than its factorization.

76500905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176955.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 76500905 is about 8746.4795775215. The cubic root of 76500905 is about 424.5109114229.

The spelling of 76500905 in words is "seventy-six million, five hundred thousand, nine hundred five".

Divisors: 1 5 13 65 1176937 5884685 15300181 76500905