Search a number
-
+
22068980 = 2251103449
BaseRepresentation
bin101010000101…
…1111011110100
31112112012221122
41110023323310
521122201410
62105003112
7355404023
oct124137364
945465848
1022068980
111150382a
127483498
13475908b
142d068ba
151e0de55
hex150bef4

22068980 has 12 divisors (see below), whose sum is σ = 46344900. Its totient is φ = 8827584.

The previous prime is 22068979. The next prime is 22068997. The reversal of 22068980 is 8986022.

It can be written as a sum of positive squares in 2 ways, for example, as 7107556 + 14961424 = 2666^2 + 3868^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22068980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551705 + ... + 551744.

It is an arithmetic number, because the mean of its divisors is an integer number (3862075).

Almost surely, 222068980 is an apocalyptic number.

22068980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22068980 is an abundant number, since it is smaller than the sum of its proper divisors (24275920).

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

22068980 is a wasteful number, since it uses less digits than its factorization.

22068980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103458 (or 1103456 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 22068980 is about 4697.7632975705. The cubic root of 22068980 is about 280.4964830843.

The spelling of 22068980 in words is "twenty-two million, sixty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 1103449 2206898 4413796 5517245 11034490 22068980