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83010240068 = 2272423521633
BaseRepresentation
bin100110101001111001…
…0111011111001000100
321221021010102010001212
41031103302323321010
52330001110140233
6102045005310552
75666033253500
oct1152362737104
9257233363055
1083010240068
1132228130a98
1214107b65458
137a9b993262
144036889300
15225c8d6a48
hex1353cbbe44

83010240068 has 18 divisors (see below), whose sum is σ = 168985131966. Its totient is φ = 35575817088.

The previous prime is 83010240017. The next prime is 83010240073. The reversal of 83010240068 is 86004201038.

It can be written as a sum of positive squares in only one way, i.e., 82594161664 + 416078404 = 287392^2 + 20398^2 .

It is a super-2 number, since 2×830102400682 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211760621 + ... + 211761012.

It is an arithmetic number, because the mean of its divisors is an integer number (9388062887).

Almost surely, 283010240068 is an apocalyptic number.

It is an amenable number.

83010240068 is an abundant number, since it is smaller than the sum of its proper divisors (85974891898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83010240068 is a wasteful number, since it uses less digits than its factorization.

83010240068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423521651 (or 423521642 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 83010240068 in words is "eighty-three billion, ten million, two hundred forty thousand, sixty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 423521633 847043266 1694086532 2964651431 5929302862 11858605724 20752560017 41505120034 83010240068