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71434244 = 2272551223
BaseRepresentation
bin1000100001000…
…00000000000100
311222102020100202
410100200000010
5121241343434
611031030032
71525116050
oct420400004
9158366322
1071434244
1137360672
121bb0b318
1311a515ab
1496b6c60
156410a7e
hex4420004

71434244 has 12 divisors (see below), whose sum is σ = 142868544. Its totient is φ = 30614664.

The previous prime is 71434241. The next prime is 71434247. The reversal of 71434244 is 44243417.

It is an interprime number because it is at equal distance from previous prime (71434241) and next prime (71434247).

71434244 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (71434241) 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, 1275584 + ... + 1275639.

It is an arithmetic number, because the mean of its divisors is an integer number (11905712).

Almost surely, 271434244 is an apocalyptic number.

It is an amenable number.

71434244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71434244 is a wasteful number, since it uses less digits than its factorization.

71434244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551234 (or 2551232 counting only the distinct ones).

The product of its digits is 10752, while the sum is 29.

The square root of 71434244 is about 8451.8781344740. The cubic root of 71434244 is about 414.9242499764.

The spelling of 71434244 in words is "seventy-one million, four hundred thirty-four thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 2551223 5102446 10204892 17858561 35717122 71434244