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22340980 = 2254723767
BaseRepresentation
bin101010100111…
…0010101110100
31120001001001201
41111032111310
521204402410
62114502244
7360616024
oct125162564
946031051
1022340980
111167a122
127594984
134822b1c
142d77a84
151e6483a
hex154e574

22340980 has 24 divisors (see below), whose sum is σ = 47916288. Its totient is φ = 8745888.

The previous prime is 22340959. The next prime is 22341013. The reversal of 22340980 is 8904322.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10944 + ... + 12823.

It is an arithmetic number, because the mean of its divisors is an integer number (1996512).

Almost surely, 222340980 is an apocalyptic number.

22340980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22340980 is an abundant number, since it is smaller than the sum of its proper divisors (25575308).

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

22340980 is a wasteful number, since it uses less digits than its factorization.

22340980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23823 (or 23821 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 22340980 is about 4726.6245884352. The cubic root of 22340980 is about 281.6441532060.

The spelling of 22340980 in words is "twenty-two million, three hundred forty thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 23767 47534 95068 118835 237670 475340 1117049 2234098 4468196 5585245 11170490 22340980