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71960879101 = 97741864733
BaseRepresentation
bin100001100000100110…
…0111101111111111101
320212202002002102022111
41003001030331333331
52134333441112401
653020335214021
75125154244226
oct1030114757775
9225662072274
1071960879101
1128578049611
1211b43677311
136a2a775347
1436a920a24d
151d12846e51
hex10c133dffd

71960879101 has 4 divisors (see below), whose sum is σ = 72702743932. Its totient is φ = 71219014272.

The previous prime is 71960879099. The next prime is 71960879119. The reversal of 71960879101 is 10197806917.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31910463225 + 40050415876 = 178635^2 + 200126^2 .

It is a cyclic number.

It is not a de Polignac number, because 71960879101 - 21 = 71960879099 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 (71960579101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370932270 + ... + 370932463.

It is an arithmetic number, because the mean of its divisors is an integer number (18175685983).

Almost surely, 271960879101 is an apocalyptic number.

It is an amenable number.

71960879101 is a deficient number, since it is larger than the sum of its proper divisors (741864831).

71960879101 is an equidigital number, since it uses as much as digits as its factorization.

71960879101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741864830.

The product of its (nonzero) digits is 190512, while the sum is 49.

The spelling of 71960879101 in words is "seventy-one billion, nine hundred sixty million, eight hundred seventy-nine thousand, one hundred one".

Divisors: 1 97 741864733 71960879101