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71316244 = 2231575131
BaseRepresentation
bin1000100000000…
…11001100010100
311222012020111101
410100003030110
5121224104434
611024315444
71524115036
oct420031424
9158166441
1071316244
113728aa4a
121ba72b84
1311a0c97c
149685c56
1563dab14
hex4403314

71316244 has 12 divisors (see below), whose sum is σ = 128829568. Its totient is φ = 34507800.

The previous prime is 71316229. The next prime is 71316247. The reversal of 71316244 is 44261317.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71316247) 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, 287442 + ... + 287689.

Almost surely, 271316244 is an apocalyptic number.

It is an amenable number.

71316244 is a deficient number, since it is larger than the sum of its proper divisors (57513324).

71316244 is a wasteful number, since it uses less digits than its factorization.

71316244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575166 (or 575164 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 71316244 is about 8444.8945523316. The cubic root of 71316244 is about 414.6956572520.

The spelling of 71316244 in words is "seventy-one million, three hundred sixteen thousand, two hundred forty-four".

Divisors: 1 2 4 31 62 124 575131 1150262 2300524 17829061 35658122 71316244