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71315214 = 2312899221
BaseRepresentation
bin1000100000000…
…10111100001110
311222012012002020
410100002330032
5121224041324
611024311010
71524112035
oct420027416
9158165066
1071315214
113728a1a3
121ba72466
1311a0c369
14968571c
1563da679
hex4402f0e

71315214 has 16 divisors (see below), whose sum is σ = 142756560. Its totient is φ = 23750720.

The previous prime is 71315171. The next prime is 71315219. The reversal of 71315214 is 41251317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71315219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3124 + ... + 12344.

It is an arithmetic number, because the mean of its divisors is an integer number (8922285).

Almost surely, 271315214 is an apocalyptic number.

71315214 is an abundant number, since it is smaller than the sum of its proper divisors (71441346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71315214 is a wasteful number, since it uses less digits than its factorization.

71315214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10515.

The product of its digits is 840, while the sum is 24.

The square root of 71315214 is about 8444.8335685199. The cubic root of 71315214 is about 414.6936607990.

The spelling of 71315214 in words is "seventy-one million, three hundred fifteen thousand, two hundred fourteen".

Divisors: 1 2 3 6 1289 2578 3867 7734 9221 18442 27663 55326 11885869 23771738 35657607 71315214