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71470369 is a prime number
BaseRepresentation
bin1000100001010…
…00110100100001
311222111001220201
410100220310201
5121244022434
611031505201
71525326265
oct420506441
9158431821
1071470369
1137385823
121bb28201
1311a64b79
1496c60a5
15641b614
hex4428d21

71470369 has 2 divisors, whose sum is σ = 71470370. Its totient is φ = 71470368.

The previous prime is 71470367. The next prime is 71470379. The reversal of 71470369 is 96307417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61779600 + 9690769 = 7860^2 + 3113^2 .

It is a cyclic number.

It is not a de Polignac number, because 71470369 - 21 = 71470367 is a prime.

It is a super-2 number, since 2×714703692 = 10216027289992322, which contains 22 as substring.

Together with 71470367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71470367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35735184 + 35735185.

It is an arithmetic number, because the mean of its divisors is an integer number (35735185).

Almost surely, 271470369 is an apocalyptic number.

It is an amenable number.

71470369 is a deficient number, since it is larger than the sum of its proper divisors (1).

71470369 is an equidigital number, since it uses as much as digits as its factorization.

71470369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 71470369 is about 8454.0149633177. The cubic root of 71470369 is about 414.9941819478.

The spelling of 71470369 in words is "seventy-one million, four hundred seventy thousand, three hundred sixty-nine".