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22253830 = 252339551
BaseRepresentation
bin101010011100…
…1000100000110
31112212121111221
41110321010012
521144110310
62112550554
7360103654
oct124710406
945777457
1022253830
111161a6a5
12755245a
1347c2261
142d53dd4
151e48ada
hex1539106

22253830 has 16 divisors (see below), whose sum is σ = 40233024. Its totient is φ = 8862400.

The previous prime is 22253813. The next prime is 22253843. The reversal of 22253830 is 3835222.

It is a junction number, because it is equal to n+sod(n) for n = 22253795 and 22253804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2446 + ... + 7105.

It is an arithmetic number, because the mean of its divisors is an integer number (2514564).

Almost surely, 222253830 is an apocalyptic number.

22253830 is a deficient number, since it is larger than the sum of its proper divisors (17979194).

22253830 is a wasteful number, since it uses less digits than its factorization.

22253830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9791.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 22253830 is about 4717.3965277471. The cubic root of 22253830 is about 281.2774537810.

The spelling of 22253830 in words is "twenty-two million, two hundred fifty-three thousand, eight hundred thirty".

Divisors: 1 2 5 10 233 466 1165 2330 9551 19102 47755 95510 2225383 4450766 11126915 22253830