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71390483 = 79903677
BaseRepresentation
bin1000100000101…
…01010100010011
311222100000022222
410100111110103
5121233443413
611030051255
71524544343
oct420252423
9158300288
1071390483
11373307aa
121baa9b2b
1311a376b8
1496a4d23
156402b08
hex4415513

71390483 has 4 divisors (see below), whose sum is σ = 72294240. Its totient is φ = 70486728.

The previous prime is 71390453. The next prime is 71390491. The reversal of 71390483 is 38409317.

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 71390483 - 212 = 71386387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71390453) 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, 451760 + ... + 451917.

It is an arithmetic number, because the mean of its divisors is an integer number (18073560).

Almost surely, 271390483 is an apocalyptic number.

71390483 is a deficient number, since it is larger than the sum of its proper divisors (903757).

71390483 is an equidigital number, since it uses as much as digits as its factorization.

71390483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903756.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 71390483 is about 8449.2889049908. The cubic root of 71390483 is about 414.8395043971.

The spelling of 71390483 in words is "seventy-one million, three hundred ninety thousand, four hundred eighty-three".

Divisors: 1 79 903677 71390483