Search a number
-
+
85029630 = 23571572579
BaseRepresentation
bin1010001000101…
…11001011111110
312220222221201120
411010113023332
5133231422010
612234251410
72051511540
oct504271376
9186887646
1085029630
1143aa7024
1224586b66
13148017ba
14b415690
1576e8e70
hex51172fe

85029630 has 64 divisors (see below), whose sum is σ = 234800640. Its totient is φ = 19304064.

The previous prime is 85029629. The next prime is 85029641. The reversal of 85029630 is 3692058.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85029591 and 85029600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31681 + ... + 34259.

It is an arithmetic number, because the mean of its divisors is an integer number (3668760).

Almost surely, 285029630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85029630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117400320).

85029630 is an abundant number, since it is smaller than the sum of its proper divisors (149771010).

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

85029630 is a wasteful number, since it uses less digits than its factorization.

85029630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 85029630 is about 9221.1512296459. The cubic root of 85029630 is about 439.7340507171.

The spelling of 85029630 in words is "eighty-five million, twenty-nine thousand, six hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 157 210 314 471 785 942 1099 1570 2198 2355 2579 3297 4710 5158 5495 6594 7737 10990 12895 15474 16485 18053 25790 32970 36106 38685 54159 77370 90265 108318 180530 270795 404903 541590 809806 1214709 2024515 2429418 2834321 4049030 5668642 6073545 8502963 12147090 14171605 17005926 28343210 42514815 85029630