Search a number
-
+
22472880 = 243593637
BaseRepresentation
bin101010110111…
…0100010110000
31120021201222220
41111232202300
521223113010
62121401040
7362005413
oct125564260
946251886
1022472880
111175a231
127639180
13486ab81
142dadb7a
151e8d970
hex156e8b0

22472880 has 40 divisors (see below), whose sum is σ = 69666672. Its totient is φ = 5992704.

The previous prime is 22472867. The next prime is 22472881. The reversal of 22472880 is 8827422.

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

It is not an unprimeable number, because it can be changed into a prime (22472881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46579 + ... + 47058.

Almost surely, 222472880 is an apocalyptic number.

22472880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22472880 is an abundant number, since it is smaller than the sum of its proper divisors (47193792).

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

22472880 is a wasteful number, since it uses less digits than its factorization.

22472880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93653 (or 93647 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 22472880 is about 4740.5569293069. The cubic root of 22472880 is about 282.1973368523.

The spelling of 22472880 in words is "twenty-two million, four hundred seventy-two thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 93637 187274 280911 374548 468185 561822 749096 936370 1123644 1404555 1498192 1872740 2247288 2809110 3745480 4494576 5618220 7490960 11236440 22472880