Search a number
-
+
85632630 = 2355353857
BaseRepresentation
bin1010001101010…
…10011001110110
312222010120212220
411012222121312
5133410221010
612255223210
72056602546
oct506523166
9188116786
1085632630
1144379076
1224817b06
13149830c5
14b531326
1577b7970
hex51aa676

85632630 has 32 divisors (see below), whose sum is σ = 209399904. Its totient is φ = 22404096.

The previous prime is 85632607. The next prime is 85632647. The reversal of 85632630 is 3623658.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85632591 and 85632600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25339 + ... + 28518.

It is an arithmetic number, because the mean of its divisors is an integer number (6543747).

Almost surely, 285632630 is an apocalyptic number.

85632630 is an abundant number, since it is smaller than the sum of its proper divisors (123767274).

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

85632630 is a wasteful number, since it uses less digits than its factorization.

85632630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53920.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 85632630 is about 9253.7900343589. The cubic root of 85632630 is about 440.7710824923.

The spelling of 85632630 in words is "eighty-five million, six hundred thirty-two thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 53 106 159 265 318 530 795 1590 53857 107714 161571 269285 323142 538570 807855 1615710 2854421 5708842 8563263 14272105 17126526 28544210 42816315 85632630