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22930669 = 31739699
BaseRepresentation
bin101011101111…
…0010011101101
31121010222222001
41113132103231
521332240134
62135252301
7365623156
oct127362355
947128861
1022930669
1111a42173
12781a091
13499b358
14308c92d
15202e414
hex15de4ed

22930669 has 4 divisors (see below), whose sum is σ = 23670400. Its totient is φ = 22190940.

The previous prime is 22930651. The next prime is 22930681. The reversal of 22930669 is 96603922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96603922 = 248301961.

It is a cyclic number.

It is not a de Polignac number, because 22930669 - 29 = 22930157 is a prime.

It is a super-2 number, since 2×229306692 = 1051631161575122, which contains 22 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 (22930469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369819 + ... + 369880.

It is an arithmetic number, because the mean of its divisors is an integer number (5917600).

Almost surely, 222930669 is an apocalyptic number.

It is an amenable number.

22930669 is a deficient number, since it is larger than the sum of its proper divisors (739731).

22930669 is an equidigital number, since it uses as much as digits as its factorization.

22930669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739730.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 22930669 is about 4788.5978114684. The cubic root of 22930669 is about 284.1006594518.

The spelling of 22930669 in words is "twenty-two million, nine hundred thirty thousand, six hundred sixty-nine".

Divisors: 1 31 739699 22930669