Search a number
-
+
102022660 = 22543971223
BaseRepresentation
bin1100001010010…
…11111000000100
321002222021210001
412011023320010
5202104211120
614042411044
72346115105
oct605137004
9232867701
10102022660
1152653153
122a200a84
13181a134c
14d79a3ac
158e53e0a
hex614be04

102022660 has 48 divisors (see below), whose sum is σ = 221671296. Its totient is φ = 39416832.

The previous prime is 102022651. The next prime is 102022673. The reversal of 102022660 is 66220201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82809 + ... + 84031.

It is an arithmetic number, because the mean of its divisors is an integer number (4618152).

Almost surely, 2102022660 is an apocalyptic number.

102022660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102022660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110835648).

102022660 is an abundant number, since it is smaller than the sum of its proper divisors (119648636).

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

102022660 is a wasteful number, since it uses less digits than its factorization.

102022660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 102022660 is about 10100.6267132292. The cubic root of 102022660 is about 467.2674699367.

Adding to 102022660 its reverse (66220201), we get a palindrome (168242861).

The spelling of 102022660 in words is "one hundred two million, twenty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 43 86 97 172 194 215 388 430 485 860 970 1223 1940 2446 4171 4892 6115 8342 12230 16684 20855 24460 41710 52589 83420 105178 118631 210356 237262 262945 474524 525890 593155 1051780 1186310 2372620 5101133 10202266 20404532 25505665 51011330 102022660