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22160087 = 83313853
BaseRepresentation
bin101010010001…
…0001011010111
31112200211220222
41110202023113
521133110322
62110544555
7356233445
oct124421327
945624828
1022160087
1111566224
12750815b
13478b6a1
142d2bb95
151e2ae42
hex15222d7

22160087 has 8 divisors (see below), whose sum is σ = 22525104. Its totient is φ = 21797568.

The previous prime is 22160059. The next prime is 22160111. The reversal of 22160087 is 78006122.

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

It is a cyclic number.

It is not a de Polignac number, because 22160087 - 28 = 22159831 is a prime.

It is a super-3 number, since 3×221600873 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22160287) 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, 25553 + ... + 26405.

It is an arithmetic number, because the mean of its divisors is an integer number (2815638).

Almost surely, 222160087 is an apocalyptic number.

22160087 is a deficient number, since it is larger than the sum of its proper divisors (365017).

22160087 is an equidigital number, since it uses as much as digits as its factorization.

22160087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 22160087 is about 4707.4501590564. The cubic root of 22160087 is about 280.8819427833.

The spelling of 22160087 in words is "twenty-two million, one hundred sixty thousand, eighty-seven".

Divisors: 1 83 313 853 25979 70799 266989 22160087