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89966849950 = 25231212011559
BaseRepresentation
bin101001111001001110…
…0010010111110011110
322121012221111111210201
41103302130102332132
52433223003144300
6105155153454114
76333314415115
oct1236234227636
9277187444721
1089966849950
1135177a39a5a
121552987133a
138639cb6573
1444d674cc7c
1525184ce66a
hex14f2712f9e

89966849950 has 72 divisors (see below), whose sum is σ = 173165456880. Its totient is φ = 34774560000.

The previous prime is 89966849927. The next prime is 89966849993. The reversal of 89966849950 is 5994866998.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57707271 + ... + 57708829.

It is an arithmetic number, because the mean of its divisors is an integer number (2405075790).

Almost surely, 289966849950 is an apocalyptic number.

89966849950 is a deficient number, since it is larger than the sum of its proper divisors (83198606930).

89966849950 is a wasteful number, since it uses less digits than its factorization.

89966849950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834 (or 2798 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 73.

The spelling of 89966849950 in words is "eighty-nine billion, nine hundred sixty-six million, eight hundred forty-nine thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 31 50 62 155 310 775 961 1201 1550 1559 1922 2402 3118 4805 6005 7795 9610 12010 15590 24025 30025 37231 38975 48050 48329 60050 74462 77950 96658 186155 241645 372310 483290 930775 1154161 1208225 1498199 1861550 1872359 2308322 2416450 2996398 3744718 5770805 7490995 9361795 11541610 14981990 18723590 28854025 37454975 46808975 57708050 58043129 74909950 93617950 116086258 290215645 580431290 1451078225 1799336999 2902156450 3598673998 8996684995 17993369990 44983424975 89966849950