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82272532 = 22178911497
BaseRepresentation
bin1001110011101…
…10000100010100
312201210212200211
410321312010110
5132030210112
612055215204
72016206416
oct471660424
9181725624
1082272532
1142493631
1223677504
1314077894
14acd89b6
1573520a7
hex4e76114

82272532 has 12 divisors (see below), whose sum is σ = 144069940. Its totient is φ = 41109696.

The previous prime is 82272523. The next prime is 82272539. The reversal of 82272532 is 23527228.

It can be written as a sum of positive squares in 2 ways, for example, as 65999376 + 16273156 = 8124^2 + 4034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 82272494 and 82272503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82272539) 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, 1408 + ... + 12904.

Almost surely, 282272532 is an apocalyptic number.

It is an amenable number.

82272532 is a deficient number, since it is larger than the sum of its proper divisors (61797408).

82272532 is a wasteful number, since it uses less digits than its factorization.

82272532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13290 (or 13288 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 82272532 is about 9070.4207179160. The cubic root of 82272532 is about 434.9289213146.

The spelling of 82272532 in words is "eighty-two million, two hundred seventy-two thousand, five hundred thirty-two".

Divisors: 1 2 4 1789 3578 7156 11497 22994 45988 20568133 41136266 82272532