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71191403601 = 3191248971993
BaseRepresentation
bin100001001001101010…
…1101001110001010001
320210202110012000100220
41002103111221301101
52131244444403401
652412130503253
75100121642353
oct1022325516121
9223673160326
1071191403601
112821276724a
1211969a34b29
13693721c0b6
143634d490d3
151cb9eee336
hex1093569c51

71191403601 has 8 divisors (see below), whose sum is σ = 99917759520. Its totient is φ = 44962991712.

The previous prime is 71191403567. The next prime is 71191403627. The reversal of 71191403601 is 10630419117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71191403601 - 27 = 71191403473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71191403641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624485940 + ... + 624486053.

It is an arithmetic number, because the mean of its divisors is an integer number (12489719940).

Almost surely, 271191403601 is an apocalyptic number.

It is an amenable number.

71191403601 is a deficient number, since it is larger than the sum of its proper divisors (28726355919).

71191403601 is a wasteful number, since it uses less digits than its factorization.

71191403601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248972015.

The product of its (nonzero) digits is 4536, while the sum is 33.

The spelling of 71191403601 in words is "seventy-one billion, one hundred ninety-one million, four hundred three thousand, six hundred one".

Divisors: 1 3 19 57 1248971993 3746915979 23730467867 71191403601