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79913980475 = 5274119357709
BaseRepresentation
bin100101001101100111…
…1101001001000111011
321122021100020211101122
41022123033221020323
52302130434333400
6100413441535455
75526225424550
oct1123317511073
9248240224348
1079913980475
11309893a436a
12135a304458b
1376c73778a4
143c21586a27
15212ab7b685
hex129b3e923b

79913980475 has 48 divisors (see below), whose sum is σ = 116614827840. Its totient is φ = 53183692800.

The previous prime is 79913980387. The next prime is 79913980499. The reversal of 79913980475 is 57408931997.

It is not a de Polignac number, because 79913980475 - 210 = 79913979451 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1355921 + ... + 1413629.

It is an arithmetic number, because the mean of its divisors is an integer number (2429475580).

Almost surely, 279913980475 is an apocalyptic number.

79913980475 is a deficient number, since it is larger than the sum of its proper divisors (36700847365).

79913980475 is a wasteful number, since it uses less digits than its factorization.

79913980475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57960 (or 57955 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 62.

The spelling of 79913980475 in words is "seventy-nine billion, nine hundred thirteen million, nine hundred eighty thousand, four hundred seventy-five".

Divisors: 1 5 7 25 35 41 175 193 205 287 965 1025 1351 1435 4825 6755 7175 7913 33775 39565 55391 57709 197825 276955 288545 403963 1384775 1442725 2019815 2366069 10099075 11137837 11830345 16562483 55689185 59151725 77964859 82812415 278445925 389824295 414062075 456651317 1949121475 2283256585 3196559219 11416282925 15982796095 79913980475