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86760009217 = 721770612433
BaseRepresentation
bin101000011001101001…
…1001010111000000001
322021221110021010022201
41100303103022320001
52410141030243332
6103505040033201
76160664624200
oct1206323127001
9267843233281
1086760009217
1133881844062
1214993902801
1382487c117b
1442b08a3237
1523cbbce5e7
hex14334cae01

86760009217 has 6 divisors (see below), whose sum is σ = 100924908738. Its totient is φ = 74365722144.

The previous prime is 86760009211. The next prime is 86760009251. The reversal of 86760009217 is 71290006768.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 58413572721 + 28346436496 = 241689^2 + 168364^2 .

It is a de Polignac number, because none of the positive numbers 2k-86760009217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86760009211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 885306168 + ... + 885306265.

It is an arithmetic number, because the mean of its divisors is an integer number (16820818123).

Almost surely, 286760009217 is an apocalyptic number.

It is an amenable number.

86760009217 is a deficient number, since it is larger than the sum of its proper divisors (14164899521).

86760009217 is a wasteful number, since it uses less digits than its factorization.

86760009217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770612447 (or 1770612440 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 86760009217 in words is "eighty-six billion, seven hundred sixty million, nine thousand, two hundred seventeen".

Divisors: 1 7 49 1770612433 12394287031 86760009217