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23142741 = 319406013
BaseRepresentation
bin101100001001…
…0000101010101
31121112202212120
41120102011111
521411031431
62144010153
7400465356
oct130220525
947482776
1023142741
1112077536
127900959
134a43a3b
143105d2d
152072196
hex1612155

23142741 has 8 divisors (see below), whose sum is σ = 32481120. Its totient is φ = 14616432.

The previous prime is 23142733. The next prime is 23142751. The reversal of 23142741 is 14724132.

It is a happy number.

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

It is not a de Polignac number, because 23142741 - 23 = 23142733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23142701) 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, 202950 + ... + 203063.

It is an arithmetic number, because the mean of its divisors is an integer number (4060140).

Almost surely, 223142741 is an apocalyptic number.

It is an amenable number.

23142741 is a deficient number, since it is larger than the sum of its proper divisors (9338379).

23142741 is a wasteful number, since it uses less digits than its factorization.

23142741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406035.

The product of its digits is 1344, while the sum is 24.

The square root of 23142741 is about 4810.6902831091. The cubic root of 23142741 is about 284.9737987609.

Adding to 23142741 its reverse (14724132), we get a palindrome (37866873).

The spelling of 23142741 in words is "twenty-three million, one hundred forty-two thousand, seven hundred forty-one".

Divisors: 1 3 19 57 406013 1218039 7714247 23142741