Search a number
-
+
3989973210 = 235197988607
BaseRepresentation
bin1110110111010010…
…0010100011011010
3101022001211122021120
43231310202203122
531132413120320
61455530550110
7200606132646
oct35564424332
911261748246
103989973210
111768265a23
12934298336
134b78208c2
1429bca3c26
15185444440
hexedd228da

3989973210 has 64 divisors (see below), whose sum is σ = 10207641600. Its totient is φ = 995222592.

The previous prime is 3989973199. The next prime is 3989973223. The reversal of 3989973210 is 123799893.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 727 + ... + 89333.

It is an arithmetic number, because the mean of its divisors is an integer number (159494400).

Almost surely, 23989973210 is an apocalyptic number.

3989973210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3989973210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5103820800).

3989973210 is an abundant number, since it is smaller than the sum of its proper divisors (6217668390).

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

3989973210 is a wasteful number, since it uses less digits than its factorization.

3989973210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88715.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 3989973210 is about 63166.2347302734. The cubic root of 3989973210 is about 1586.0735640632.

The spelling of 3989973210 in words is "three billion, nine hundred eighty-nine million, nine hundred seventy-three thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 79 95 114 158 190 237 285 395 474 570 790 1185 1501 2370 3002 4503 7505 9006 15010 22515 45030 88607 177214 265821 443035 531642 886070 1329105 1683533 2658210 3367066 5050599 6999953 8417665 10101198 13999906 16835330 20999859 25252995 34999765 41999718 50505990 69999530 104999295 132999107 209998590 265998214 398997321 664995535 797994642 1329991070 1994986605 3989973210