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71305694 = 2227157061
BaseRepresentation
bin1000100000000…
…00100111011110
311222011201000122
410100000213132
5121223240234
611024154542
71524042215
oct420004736
9158151018
1071305694
1137283029
121ba68a52
1311a07c25
14968207c
1563d792e
hex44009de

71305694 has 8 divisors (see below), whose sum is σ = 107430408. Its totient is φ = 35495560.

The previous prime is 71305691. The next prime is 71305709. The reversal of 71305694 is 49650317.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71305691) 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, 78077 + ... + 78984.

It is an arithmetic number, because the mean of its divisors is an integer number (13428801).

Almost surely, 271305694 is an apocalyptic number.

71305694 is a deficient number, since it is larger than the sum of its proper divisors (36124714).

71305694 is a wasteful number, since it uses less digits than its factorization.

71305694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157290.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 71305694 is about 8444.2698914708. The cubic root of 71305694 is about 414.6752072363.

The spelling of 71305694 in words is "seventy-one million, three hundred five thousand, six hundred ninety-four".

Divisors: 1 2 227 454 157061 314122 35652847 71305694