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76980213 = 393911
BaseRepresentation
bin1001001011010…
…01111111110101
312100212000000000
410211221333311
5124201331323
611345541513
71623215052
oct445517765
9170760000
1076980213
113a4a9412
1221944899
1312c43a2b
14a31c029
156b58e43
hex4969ff5

76980213 has 20 divisors (see below), whose sum is σ = 115497888. Its totient is φ = 51307020.

The previous prime is 76980209. The next prime is 76980217. The reversal of 76980213 is 31208967.

It is an interprime number because it is at equal distance from previous prime (76980209) and next prime (76980217).

It is not a de Polignac number, because 76980213 - 22 = 76980209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76980217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17728 + ... + 21638.

Almost surely, 276980213 is an apocalyptic number.

It is an amenable number.

76980213 is a deficient number, since it is larger than the sum of its proper divisors (38517675).

76980213 is an frugal number, since it uses more digits than its factorization.

76980213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3938 (or 3914 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 76980213 is about 8773.8368459871. The cubic root of 76980213 is about 425.3956417242.

The spelling of 76980213 in words is "seventy-six million, nine hundred eighty thousand, two hundred thirteen".

Divisors: 1 3 9 27 81 243 729 2187 3911 6561 11733 19683 35199 105597 316791 950373 2851119 8553357 25660071 76980213