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76600397 = 293771389
BaseRepresentation
bin1001001000011…
…01010001001101
312100010200222202
410210031101031
5124102203042
611333451245
71620043526
oct444152115
9170120882
1076600397
113a26a015
12217a0b25
1312b3cba3
14a25d84d
156ad1632
hex490d44d

76600397 has 8 divisors (see below), whose sum is σ = 81384600. Its totient is φ = 71959104.

The previous prime is 76600393. The next prime is 76600427. The reversal of 76600397 is 79300667.

It can be written as a sum of positive squares in 4 ways, for example, as 53377636 + 23222761 = 7306^2 + 4819^2 .

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 76600397 - 22 = 76600393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76600397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76600393) by changing a digit.

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, 34622 + ... + 36767.

It is an arithmetic number, because the mean of its divisors is an integer number (10173075).

Almost surely, 276600397 is an apocalyptic number.

It is an amenable number.

76600397 is a deficient number, since it is larger than the sum of its proper divisors (4784203).

76600397 is a wasteful number, since it uses less digits than its factorization.

76600397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71455.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 76600397 is about 8752.1652749477. The cubic root of 76600397 is about 424.6948619407.

The spelling of 76600397 in words is "seventy-six million, six hundred thousand, three hundred ninety-seven".

Divisors: 1 29 37 1073 71389 2070281 2641393 76600397