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22380329 = 37959051
BaseRepresentation
bin101010101011…
…1111100101001
31120010001001002
41111113330221
521212132304
62115404345
7361141526
oct125277451
946101032
1022380329
11116a6744
1275b36b5
1348379ca
142d8814d
151e7131e
hex1557f29

22380329 has 4 divisors (see below), whose sum is σ = 22439760. Its totient is φ = 22320900.

The previous prime is 22380307. The next prime is 22380341. The reversal of 22380329 is 92308322.

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: 92308322 = 246154161.

It is a cyclic number.

It is not a de Polignac number, because 22380329 - 28 = 22380073 is a prime.

It is a super-2 number, since 2×223803292 = 1001758252296482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22380359) 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, 29147 + ... + 29904.

It is an arithmetic number, because the mean of its divisors is an integer number (5609940).

Almost surely, 222380329 is an apocalyptic number.

It is an amenable number.

22380329 is a deficient number, since it is larger than the sum of its proper divisors (59431).

22380329 is an equidigital number, since it uses as much as digits as its factorization.

22380329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59430.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 22380329 is about 4730.7852413738. The cubic root of 22380329 is about 281.8094087989.

The spelling of 22380329 in words is "twenty-two million, three hundred eighty thousand, three hundred twenty-nine".

Divisors: 1 379 59051 22380329