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82529830 = 2513196257
BaseRepresentation
bin1001110101101…
…00111000100110
312202021221122101
410322310320212
5132111423310
612104522314
72021330515
oct472647046
9182257571
1082529830
1142649979
122378039a
1314137a26
14ad6467c
1573a343a
hex4eb4e26

82529830 has 16 divisors (see below), whose sum is σ = 148690080. Its totient is φ = 32981632.

The previous prime is 82529809. The next prime is 82529833. The reversal of 82529830 is 3892528.

It is a super-2 number, since 2×825298302 = 13622345679657800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82529830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82529833) 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, 10062 + ... + 16318.

It is an arithmetic number, because the mean of its divisors is an integer number (9293130).

Almost surely, 282529830 is an apocalyptic number.

82529830 is a deficient number, since it is larger than the sum of its proper divisors (66160250).

82529830 is a wasteful number, since it uses less digits than its factorization.

82529830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7583.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 82529830 is about 9084.5930013402. The cubic root of 82529830 is about 435.3818464202.

The spelling of 82529830 in words is "eighty-two million, five hundred twenty-nine thousand, eight hundred thirty".

Divisors: 1 2 5 10 1319 2638 6257 6595 12514 13190 31285 62570 8252983 16505966 41264915 82529830