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71341144 = 2372574957
BaseRepresentation
bin1000100000010…
…01010001011000
311222020111122121
410100021101120
5121230404034
611025031024
71524250450
oct420112130
9158214577
1071341144
11372a7726
121ba85474
1311a1b0c4
149690d60
1563e31b4
hex4409458

71341144 has 32 divisors (see below), whose sum is σ = 153499680. Its totient is φ = 30449664.

The previous prime is 71341141. The next prime is 71341169. The reversal of 71341144 is 44114317.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71341141) 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, 11914 + ... + 16870.

It is an arithmetic number, because the mean of its divisors is an integer number (4796865).

Almost surely, 271341144 is an apocalyptic number.

It is an amenable number.

71341144 is an abundant number, since it is smaller than the sum of its proper divisors (82158536).

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

71341144 is a wasteful number, since it uses less digits than its factorization.

71341144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227 (or 5223 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 71341144 is about 8446.3686871933. The cubic root of 71341144 is about 414.7439151699.

The spelling of 71341144 in words is "seventy-one million, three hundred forty-one thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 28 56 257 514 1028 1799 2056 3598 4957 7196 9914 14392 19828 34699 39656 69398 138796 277592 1273949 2547898 5095796 8917643 10191592 17835286 35670572 71341144