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22930159 = 73275737
BaseRepresentation
bin101011101111…
…0001011101111
31121010222021011
41113132023233
521332231114
62135250051
7365621530
oct127361357
947128234
1022930159
1111a4184a
127819927
13499b055
14308c687
15202e1c4
hex15de2ef

22930159 has 4 divisors (see below), whose sum is σ = 26205904. Its totient is φ = 19654416.

The previous prime is 22930157. The next prime is 22930163. The reversal of 22930159 is 95103922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95103922 = 247551961.

It is a cyclic number.

It is not a de Polignac number, because 22930159 - 21 = 22930157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22930159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22930151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637862 + ... + 1637875.

It is an arithmetic number, because the mean of its divisors is an integer number (6551476).

Almost surely, 222930159 is an apocalyptic number.

22930159 is a deficient number, since it is larger than the sum of its proper divisors (3275745).

22930159 is an equidigital number, since it uses as much as digits as its factorization.

22930159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275744.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 22930159 is about 4788.5445596757. The cubic root of 22930159 is about 284.0985532128.

The spelling of 22930159 in words is "twenty-two million, nine hundred thirty thousand, one hundred fifty-nine".

Divisors: 1 7 3275737 22930159