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82862900 = 22521137333
BaseRepresentation
bin1001111000001…
…10001100110100
312202220212112022
410330012030310
5132203103100
612120012312
72024215541
oct474061464
9182825468
1082862900
114285713a
1223901098
1314223503
14b00dbc8
15741be85
hex4f06334

82862900 has 36 divisors (see below), whose sum is σ = 181428492. Its totient is φ = 32847360.

The previous prime is 82862887. The next prime is 82862909. The reversal of 82862900 is 926828.

It can be written as a sum of positive squares in 6 ways, for example, as 44249104 + 38613796 = 6652^2 + 6214^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82862909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7634 + ... + 14966.

Almost surely, 282862900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82862900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90714246).

82862900 is an abundant number, since it is smaller than the sum of its proper divisors (98565592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82862900 is a wasteful number, since it uses less digits than its factorization.

82862900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7460 (or 7453 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 82862900 is about 9102.9061293633. The cubic root of 82862900 is about 435.9667581199.

The spelling of 82862900 in words is "eighty-two million, eight hundred sixty-two thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 113 226 452 565 1130 2260 2825 5650 7333 11300 14666 29332 36665 73330 146660 183325 366650 733300 828629 1657258 3314516 4143145 8286290 16572580 20715725 41431450 82862900