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23043349 = 73291907
BaseRepresentation
bin101011111100…
…1110100010101
31121100201112101
41113321310111
521344341344
62141522101
7366602530
oct127716425
947321471
1023043349
111200989a
127873331
134a0a724
1430bba17
1520529d4
hex15f9d15

23043349 has 4 divisors (see below), whose sum is σ = 26335264. Its totient is φ = 19751436.

The previous prime is 23043343. The next prime is 23043359. The reversal of 23043349 is 94334032.

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 not a de Polignac number, because 23043349 - 27 = 23043221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23043343) 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, 1645947 + ... + 1645960.

It is an arithmetic number, because the mean of its divisors is an integer number (6583816).

Almost surely, 223043349 is an apocalyptic number.

It is an amenable number.

23043349 is a deficient number, since it is larger than the sum of its proper divisors (3291915).

23043349 is an equidigital number, since it uses as much as digits as its factorization.

23043349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3291914.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 23043349 is about 4800.3488414906. The cubic root of 23043349 is about 284.5652507696.

The spelling of 23043349 in words is "twenty-three million, forty-three thousand, three hundred forty-nine".

Divisors: 1 7 3291907 23043349