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71412113 = 109655157
BaseRepresentation
bin1000100000110…
…10100110010001
311222101010000002
410100122212101
5121240141423
611030335345
71524664403
oct420324621
9158333002
1071412113
1137345a83
121baba555
1311a444b6
1496acb73
156409228
hex441a991

71412113 has 4 divisors (see below), whose sum is σ = 72067380. Its totient is φ = 70756848.

The previous prime is 71412101. The next prime is 71412137. The reversal of 71412113 is 31121417.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31121417 = 269115693.

It can be written as a sum of positive squares in 2 ways, for example, as 64192144 + 7219969 = 8012^2 + 2687^2 .

It is a cyclic number.

It is not a de Polignac number, because 71412113 - 26 = 71412049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71412713) 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, 327470 + ... + 327687.

It is an arithmetic number, because the mean of its divisors is an integer number (18016845).

Almost surely, 271412113 is an apocalyptic number.

It is an amenable number.

71412113 is a deficient number, since it is larger than the sum of its proper divisors (655267).

71412113 is a wasteful number, since it uses less digits than its factorization.

71412113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655266.

The product of its digits is 168, while the sum is 20.

The square root of 71412113 is about 8450.5687974242. The cubic root of 71412113 is about 414.8813964068.

The spelling of 71412113 in words is "seventy-one million, four hundred twelve thousand, one hundred thirteen".

Divisors: 1 109 655157 71412113