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82127076457 = 179937489659
BaseRepresentation
bin100110001111100100…
…1111011110001101001
321211222120120202100111
41030133021323301221
52321144012421312
6101421220134321
75635120426456
oct1143711736151
9254876522314
1082127076457
1131914659108
1213b002373a1
13798aa1303a
143d9147282d
15220a0d38a7
hex131f27bc69

82127076457 has 8 divisors (see below), whose sum is σ = 82674194400. Its totient is φ = 81580940064.

The previous prime is 82127076391. The next prime is 82127076469. The reversal of 82127076457 is 75467072128.

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 82127076457 - 215 = 82127043689 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 82127076457.

It is not an unprimeable number, because it can be changed into a prime (82127046457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77107 + ... + 412552.

It is an arithmetic number, because the mean of its divisors is an integer number (10334274300).

Almost surely, 282127076457 is an apocalyptic number.

It is an amenable number.

82127076457 is a deficient number, since it is larger than the sum of its proper divisors (547117943).

82127076457 is a wasteful number, since it uses less digits than its factorization.

82127076457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490775.

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 82127076457 in words is "eighty-two billion, one hundred twenty-seven million, seventy-six thousand, four hundred fifty-seven".

Divisors: 1 179 937 167723 489659 87648961 458810483 82127076457