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79948284997 = 732573792393
BaseRepresentation
bin100101001110101001…
…0100000010001000101
321122100201210200100111
41022131102200101011
52302213230104442
6100421105113021
75530123132000
oct1123522402105
9248321720314
1079948284997
11309a67a4909
12135b2628771
1377014c8c19
143c25d56537
15212dba5b17
hex129d4a0445

79948284997 has 32 divisors (see below), whose sum is σ = 93883104000. Its totient is φ = 68051902464.

The previous prime is 79948284989. The next prime is 79948285007.

79948284997 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 79948284997 - 23 = 79948284989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79948284197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33408033 + ... + 33410425.

It is an arithmetic number, because the mean of its divisors is an integer number (2933847000).

Almost surely, 279948284997 is an apocalyptic number.

It is an amenable number.

79948284997 is a deficient number, since it is larger than the sum of its proper divisors (13934819003).

79948284997 is a wasteful number, since it uses less digits than its factorization.

79948284997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050 (or 3036 counting only the distinct ones).

The product of its digits is 658409472, while the sum is 76.

The spelling of 79948284997 in words is "seventy-nine billion, nine hundred forty-eight million, two hundred eighty-four thousand, nine hundred ninety-seven".

Divisors: 1 7 49 257 343 379 1799 2393 2653 12593 16751 18571 88151 97403 117257 129997 615001 681821 820799 906947 4305007 4772747 6348629 30135049 33409229 44440403 210945343 233085379 311082821 1631597653 11421183571 79948284997