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82082990 = 2511746209
BaseRepresentation
bin1001110010001…
…11110010101110
312201110020200202
410321013302232
5132003123430
612051153502
72014460003
oct471076256
9181406622
1082082990
1142374190
12235a5892
131400c522
14ac898aa
157315d45
hex4e47cae

82082990 has 16 divisors (see below), whose sum is σ = 161181360. Its totient is φ = 29848320.

The previous prime is 82082981. The next prime is 82082993. The reversal of 82082990 is 9928028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82082993) 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, 372995 + ... + 373214.

It is an arithmetic number, because the mean of its divisors is an integer number (10073835).

Almost surely, 282082990 is an apocalyptic number.

82082990 is a deficient number, since it is larger than the sum of its proper divisors (79098370).

82082990 is a wasteful number, since it uses less digits than its factorization.

82082990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746227.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 82082990 is about 9059.9663354783. The cubic root of 82082990 is about 434.5946635984.

The spelling of 82082990 in words is "eighty-two million, eighty-two thousand, nine hundred ninety".

Divisors: 1 2 5 10 11 22 55 110 746209 1492418 3731045 7462090 8208299 16416598 41041495 82082990