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71441396 = 22131373873
BaseRepresentation
bin1000100001000…
…01101111110100
311222102121011122
410100201233310
5121242111041
611031123112
71525145645
oct420415764
9158377148
1071441396
1137365a84
121bb13498
1311a54920
1496b96cc
156412c4b
hex4421bf4

71441396 has 12 divisors (see below), whose sum is σ = 134639652. Its totient is φ = 32972928.

The previous prime is 71441371. The next prime is 71441399. The reversal of 71441396 is 69314417.

It can be written as a sum of positive squares in 2 ways, for example, as 48497296 + 22944100 = 6964^2 + 4790^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71441399) 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, 686885 + ... + 686988.

It is an arithmetic number, because the mean of its divisors is an integer number (11219971).

Almost surely, 271441396 is an apocalyptic number.

It is an amenable number.

71441396 is a deficient number, since it is larger than the sum of its proper divisors (63198256).

71441396 is a wasteful number, since it uses less digits than its factorization.

71441396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373890 (or 1373888 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 71441396 is about 8452.3012251102. The cubic root of 71441396 is about 414.9380969263.

The spelling of 71441396 in words is "seventy-one million, four hundred forty-one thousand, three hundred ninety-six".

Divisors: 1 2 4 13 26 52 1373873 2747746 5495492 17860349 35720698 71441396