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71426236 = 2272550937
BaseRepresentation
bin1000100000111…
…10000010111100
311222101211101011
410100132002330
5121241114421
611030525004
71525053520
oct420360274
9158354334
1071426236
1137355652
121bb06764
1311a4aa5b
1496b3d80
15640d4e1
hex441e0bc

71426236 has 12 divisors (see below), whose sum is σ = 142852528. Its totient is φ = 30611232.

The previous prime is 71426227. The next prime is 71426237. The reversal of 71426236 is 63262417.

71426236 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 71426198 and 71426207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71426237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275441 + ... + 1275496.

Almost surely, 271426236 is an apocalyptic number.

It is an amenable number.

71426236 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.

71426236 is a wasteful number, since it uses less digits than its factorization.

71426236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550948 (or 2550946 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 71426236 is about 8451.4043803382. The cubic root of 71426236 is about 414.9087446324.

The spelling of 71426236 in words is "seventy-one million, four hundred twenty-six thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 2550937 5101874 10203748 17856559 35713118 71426236