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79994805029 = 432220719603
BaseRepresentation
bin100101010000000001…
…1111101101100100101
321122110222100010211122
41022200003331230211
52302312132230104
6100425450143325
75531226423626
oct1124003755445
9248428303748
1079994805029
1130a1aa89017
1213606121b45
13770b036379
143c2c1c5a4d
152132ce46be
hex12a00fdb25

79994805029 has 12 divisors (see below), whose sum is σ = 81939701376. Its totient is φ = 78095073672.

The previous prime is 79994805013. The next prime is 79994805047. The reversal of 79994805029 is 92050849997.

It is not a de Polignac number, because 79994805029 - 24 = 79994805013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79994805049) 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 11 ways as a sum of consecutive naturals, for example, 4070942 + ... + 4090544.

It is an arithmetic number, because the mean of its divisors is an integer number (6828308448).

Almost surely, 279994805029 is an apocalyptic number.

It is an amenable number.

79994805029 is a deficient number, since it is larger than the sum of its proper divisors (1944896347).

79994805029 is a wasteful number, since it uses less digits than its factorization.

79994805029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21896 (or 21853 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 62.

The spelling of 79994805029 in words is "seventy-nine billion, nine hundred ninety-four million, eight hundred five thousand, twenty-nine".

Divisors: 1 43 1849 2207 19603 94901 842929 4080743 36245947 43263821 1860344303 79994805029