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22854040 = 2351151941
BaseRepresentation
bin101011100101…
…1100110011000
31121000002211221
41113023212120
521322312130
62133501424
7365153566
oct127134630
947002757
1022854040
111199a640
1277a1874
134972501
14306ca36
15201687a
hex15cb998

22854040 has 32 divisors (see below), whose sum is σ = 56097360. Its totient is φ = 8310400.

The previous prime is 22853983. The next prime is 22854047. The reversal of 22854040 is 4045822.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22853996 and 22854014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22854047) by changing a digit.

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, 25531 + ... + 26410.

Almost surely, 222854040 is an apocalyptic number.

22854040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22854040 is an abundant number, since it is smaller than the sum of its proper divisors (33243320).

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

22854040 is a wasteful number, since it uses less digits than its factorization.

22854040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51963 (or 51959 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 22854040 is about 4780.5899217565. The cubic root of 22854040 is about 283.7838400131.

Adding to 22854040 its reverse (4045822), we get a palindrome (26899862).

The spelling of 22854040 in words is "twenty-two million, eight hundred fifty-four thousand, forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 51941 103882 207764 259705 415528 519410 571351 1038820 1142702 2077640 2285404 2856755 4570808 5713510 11427020 22854040