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22806838 = 213187049
BaseRepresentation
bin101011100000…
…0000100110110
31120220201002201
41113000010312
521314304323
62132455114
7364566145
oct127000466
946821081
1022806838
111196812a
12777a49a
134956b92
14305975c
1520078ad
hex15c0136

22806838 has 8 divisors (see below), whose sum is σ = 34471800. Its totient is φ = 11316240.

The previous prime is 22806799. The next prime is 22806851. The reversal of 22806838 is 83860822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22806797 and 22806806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43263 + ... + 43786.

It is an arithmetic number, because the mean of its divisors is an integer number (4308975).

Almost surely, 222806838 is an apocalyptic number.

22806838 is a deficient number, since it is larger than the sum of its proper divisors (11664962).

22806838 is a wasteful number, since it uses less digits than its factorization.

22806838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87182.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 22806838 is about 4775.6505316030. The cubic root of 22806838 is about 283.5883326776.

The spelling of 22806838 in words is "twenty-two million, eight hundred six thousand, eight hundred thirty-eight".

Divisors: 1 2 131 262 87049 174098 11403419 22806838