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23077321 = 128317987
BaseRepresentation
bin101100000001…
…0000111001001
31121102110010121
41120002013021
521401433241
62142343241
7400103551
oct130020711
947373117
1023077321
1112032373
12788ab21
134a20027
1430ca161
15205cad1
hex16021c9

23077321 has 4 divisors (see below), whose sum is σ = 23096592. Its totient is φ = 23058052.

The previous prime is 23077277. The next prime is 23077333. The reversal of 23077321 is 12377032.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23077321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23077391) 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, 7711 + ... + 10276.

It is an arithmetic number, because the mean of its divisors is an integer number (5774148).

Almost surely, 223077321 is an apocalyptic number.

It is an amenable number.

23077321 is a deficient number, since it is larger than the sum of its proper divisors (19271).

23077321 is a wasteful number, since it uses less digits than its factorization.

23077321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19270.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 23077321 is about 4803.8860311211. The cubic root of 23077321 is about 284.7050236225.

The spelling of 23077321 in words is "twenty-three million, seventy-seven thousand, three hundred twenty-one".

Divisors: 1 1283 17987 23077321