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23040743 = 115339521
BaseRepresentation
bin101011111100…
…1001011100111
31121100120221212
41113321023213
521344300433
62141502035
7366562115
oct127711347
947316855
1023040743
1112007940
12787191b
134a0949b
1430baab5
152051d48
hex15f92e7

23040743 has 8 divisors (see below), whose sum is σ = 25610256. Its totient is φ = 20550400.

The previous prime is 23040713. The next prime is 23040767. The reversal of 23040743 is 34704032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23040743 - 26 = 23040679 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 (23040713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19178 + ... + 20343.

It is an arithmetic number, because the mean of its divisors is an integer number (3201282).

Almost surely, 223040743 is an apocalyptic number.

23040743 is a deficient number, since it is larger than the sum of its proper divisors (2569513).

23040743 is a wasteful number, since it uses less digits than its factorization.

23040743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39585.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 23040743 is about 4800.0773952094. The cubic root of 23040743 is about 284.5545230899.

Adding to 23040743 its reverse (34704032), we get a palindrome (57744775).

The spelling of 23040743 in words is "twenty-three million, forty thousand, seven hundred forty-three".

Divisors: 1 11 53 583 39521 434731 2094613 23040743