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79960101900 = 22352738076239
BaseRepresentation
bin100101001110111111…
…1100101010000001100
321122101120001001002120
41022131333211100030
52302224241230100
6100422210252540
75530325436420
oct1123577452014
9248346031076
1079960101900
1130a02436048
12135b6587150
137703aa5783
143c27750b80
15212ec3c0a0
hex129dfe540c

79960101900 has 72 divisors (see below), whose sum is σ = 264401410560. Its totient is φ = 18276594240.

The previous prime is 79960101869. The next prime is 79960101913. The reversal of 79960101900 is 910106997.

It is a super-2 number, since 2×799601019002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19036020 + ... + 19040219.

Almost surely, 279960101900 is an apocalyptic number.

79960101900 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

79960101900 is an abundant number, since it is smaller than the sum of its proper divisors (184441308660).

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

79960101900 is a wasteful number, since it uses less digits than its factorization.

79960101900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38076263 (or 38076256 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 42.

The spelling of 79960101900 in words is "seventy-nine billion, nine hundred sixty million, one hundred one thousand, nine hundred".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 25 28 30 35 42 50 60 70 75 84 100 105 140 150 175 210 300 350 420 525 700 1050 2100 38076239 76152478 114228717 152304956 190381195 228457434 266533673 380762390 456914868 533067346 571143585 761524780 799601019 951905975 1066134692 1142287170 1332668365 1599202038 1903811950 2284574340 2665336730 2855717925 3198404076 3807623900 3998005095 5330673460 5711435850 6663341825 7996010190 11422871700 13326683650 15992020380 19990025475 26653367300 39980050950 79960101900