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71344954 = 2173756713
BaseRepresentation
bin1000100000010…
…10001100111010
311222020200212201
410100022030322
5121231014304
611025100414
71524264532
oct420121472
9158220781
1071344954
11372aa57a
121ba8770a
1311a1ca65
1496924c2
1563e43a4
hex440a33a

71344954 has 16 divisors (see below), whose sum is σ = 116377128. Its totient is φ = 32666112.

The previous prime is 71344939. The next prime is 71344957. The reversal of 71344954 is 45944317.

It can be written as a sum of positive squares in 4 ways, for example, as 71014329 + 330625 = 8427^2 + 575^2 .

It is a super-2 number, since 2×713449542 = 10180204922524232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (71344957) 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, 27099 + ... + 29614.

Almost surely, 271344954 is an apocalyptic number.

71344954 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

71344954 is a deficient number, since it is larger than the sum of its proper divisors (45032174).

71344954 is a wasteful number, since it uses less digits than its factorization.

71344954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56769.

The product of its digits is 60480, while the sum is 37.

The square root of 71344954 is about 8446.5942248932. The cubic root of 71344954 is about 414.7512982221.

The spelling of 71344954 in words is "seventy-one million, three hundred forty-four thousand, nine hundred fifty-four".

Divisors: 1 2 17 34 37 74 629 1258 56713 113426 964121 1928242 2098381 4196762 35672477 71344954