Search a number
-
+
22468880 = 245740123
BaseRepresentation
bin101010110110…
…1100100010000
31120021112111202
41111231210100
521223001010
62121330332
7361660640
oct125554420
946245452
1022468880
1111757225
1276369a8
1348690c5
142dac520
151e8c6a5
hex156d910

22468880 has 40 divisors (see below), whose sum is σ = 59704512. Its totient is φ = 7703424.

The previous prime is 22468877. The next prime is 22468909. The reversal of 22468880 is 8886422.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 19502 + ... + 20621.

Almost surely, 222468880 is an apocalyptic number.

22468880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22468880 is an abundant number, since it is smaller than the sum of its proper divisors (37235632).

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

22468880 is a wasteful number, since it uses less digits than its factorization.

22468880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40143 (or 40137 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 22468880 is about 4740.1350191740. The cubic root of 22468880 is about 282.1805928728.

The spelling of 22468880 in words is "twenty-two million, four hundred sixty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 40123 80246 160492 200615 280861 320984 401230 561722 641968 802460 1123444 1404305 1604920 2246888 2808610 3209840 4493776 5617220 11234440 22468880