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22055243 = 7364301
BaseRepresentation
bin101010000100…
…0100101001011
31112111112002212
41110020211023
521121231433
62104415335
7355316000
oct124104513
945445085
1022055243
11114a4481
12747754b
134752a52
142d018a7
151e09d48
hex150894b

22055243 has 8 divisors (see below), whose sum is σ = 25720800. Its totient is φ = 18904200.

The previous prime is 22055233. The next prime is 22055249. The reversal of 22055243 is 34255022.

It is not a de Polignac number, because 22055243 - 212 = 22051147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22055249) 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, 31808 + ... + 32493.

It is an arithmetic number, because the mean of its divisors is an integer number (3215100).

Almost surely, 222055243 is an apocalyptic number.

22055243 is a deficient number, since it is larger than the sum of its proper divisors (3665557).

22055243 is an frugal number, since it uses more digits than its factorization.

22055243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64322 (or 64308 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 22055243 is about 4696.3009912057. The cubic root of 22055243 is about 280.4382719671.

The spelling of 22055243 in words is "twenty-two million, fifty-five thousand, two hundred forty-three".

Divisors: 1 7 49 343 64301 450107 3150749 22055243