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71225995 = 514245199
BaseRepresentation
bin1000011111011…
…01001010001011
311222000122200211
410033231022023
5121213212440
611022341551
71523260651
oct417551213
9158018624
1071225995
1137229165
121ba2a8b7
13119aa879
149660dd1
1563bdeea
hex43ed28b

71225995 has 4 divisors (see below), whose sum is σ = 85471200. Its totient is φ = 56980792.

The previous prime is 71225989. The next prime is 71226007. The reversal of 71225995 is 59952217.

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

It is a cyclic number.

It is not a de Polignac number, because 71225995 - 27 = 71225867 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7122595 + ... + 7122604.

It is an arithmetic number, because the mean of its divisors is an integer number (21367800).

Almost surely, 271225995 is an apocalyptic number.

71225995 is a deficient number, since it is larger than the sum of its proper divisors (14245205).

71225995 is a wasteful number, since it uses less digits than its factorization.

71225995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14245204.

The product of its digits is 56700, while the sum is 40.

The square root of 71225995 is about 8439.5494547991. The cubic root of 71225995 is about 414.5206542674.

The spelling of 71225995 in words is "seventy-one million, two hundred twenty-five thousand, nine hundred ninety-five".

Divisors: 1 5 14245199 71225995