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976000081 = 7244632
BaseRepresentation
bin111010001011001…
…001010001010001
32112000111221102011
4322023021101101
53444324000311
6240503022521
733120602200
oct7213112121
92460457364
10976000081
11460a21341
12232a3aa41
13127286254
14938a1237
155aa40321
hex3a2c9451

976000081 has 9 divisors (see below), whose sum is σ = 1135601481. Its totient is φ = 836384052.

The previous prime is 976000013. The next prime is 976000099. The reversal of 976000081 is 180000679.

The square root of 976000081 is 31241.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 976000081 - 225 = 942445649 is a prime.

It is a super-2 number, since 2×9760000812 = 1905152316224013122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (976000981) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 216456 + ... + 220918.

Almost surely, 2976000081 is an apocalyptic number.

976000081 is the 31241-st square number.

976000081 is the 15621-st centered octagonal number.

It is an amenable number.

976000081 is a deficient number, since it is larger than the sum of its proper divisors (159601400).

976000081 is an frugal number, since it uses more digits than its factorization.

976000081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8940 (or 4470 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The cubic root of 976000081 is about 991.9351602093.

The spelling of 976000081 in words is "nine hundred seventy-six million, eighty-one", and thus it is an aban number.

Divisors: 1 7 49 4463 31241 218687 19918369 139428583 976000081