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79917481441 = 7213031251703
BaseRepresentation
bin100101001101101110…
…0111111110111100001
321122021120211200211001
41022123130333313201
52302132333401231
6100414044552001
75526300245500
oct1123334776741
9248246750731
1079917481441
1130990375726
12135a4252601
1376c8002275
143c21c18837
15212b11db61
hex129b73fde1

79917481441 has 12 divisors (see below), whose sum is σ = 93036654912. Its totient is φ = 68448072168.

The previous prime is 79917481429. The next prime is 79917481451. The reversal of 79917481441 is 14418471997.

It is not a de Polignac number, because 79917481441 - 223 = 79909092833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79917481451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 562005 + ... + 689698.

It is an arithmetic number, because the mean of its divisors is an integer number (7753054576).

Almost surely, 279917481441 is an apocalyptic number.

It is an amenable number.

79917481441 is a deficient number, since it is larger than the sum of its proper divisors (13119173471).

79917481441 is a wasteful number, since it uses less digits than its factorization.

79917481441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253020 (or 1253013 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The spelling of 79917481441 in words is "seventy-nine billion, nine hundred seventeen million, four hundred eighty-one thousand, four hundred forty-one".

Divisors: 1 7 49 1303 9121 63847 1251703 8761921 61333447 1630969009 11416783063 79917481441