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23057473 = 26387671
BaseRepresentation
bin101011111110…
…1010001000001
31121101102220111
41113331101001
521400314343
62142111321
7366661645
oct127752101
947342814
1023057473
111201946a
12787b541
134a13c9a
1430c2c25
152056c9d
hex15fd441

23057473 has 4 divisors (see below), whose sum is σ = 23145408. Its totient is φ = 22969540.

The previous prime is 23057467. The next prime is 23057479. The reversal of 23057473 is 37475032.

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 an interprime number because it is at equal distance from previous prime (23057467) and next prime (23057479).

It is a cyclic number.

It is not a de Polignac number, because 23057473 - 213 = 23049281 is a prime.

It is a super-2 number, since 2×230574732 = 1063294122291458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23057479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43573 + ... + 44098.

It is an arithmetic number, because the mean of its divisors is an integer number (5786352).

Almost surely, 223057473 is an apocalyptic number.

It is an amenable number.

23057473 is a deficient number, since it is larger than the sum of its proper divisors (87935).

23057473 is an equidigital number, since it uses as much as digits as its factorization.

23057473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87934.

The product of its (nonzero) digits is 17640, while the sum is 31.

The square root of 23057473 is about 4801.8197592163. The cubic root of 23057473 is about 284.6233785865.

The spelling of 23057473 in words is "twenty-three million, fifty-seven thousand, four hundred seventy-three".

Divisors: 1 263 87671 23057473