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23142441 = 371102021
BaseRepresentation
bin101100001001…
…0000000101001
31121112202110110
41120102000221
521411024231
62144004533
7400464450
oct130220051
947482413
1023142441
1112077293
127900749
134a4386a
143105b97
152072046
hex1612029

23142441 has 8 divisors (see below), whose sum is σ = 35264704. Its totient is φ = 13224240.

The previous prime is 23142421. The next prime is 23142463. The reversal of 23142441 is 14424132.

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

It is not a de Polignac number, because 23142441 - 27 = 23142313 is a prime.

It is a super-5 number, since 5×231424415 (a number of 38 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1102021 = 23142441 / (2 + 3 + 1 + 4 + 2 + 4 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23142421) 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, 550990 + ... + 551031.

It is an arithmetic number, because the mean of its divisors is an integer number (4408088).

Almost surely, 223142441 is an apocalyptic number.

23142441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23142441 is a deficient number, since it is larger than the sum of its proper divisors (12122263).

23142441 is a wasteful number, since it uses less digits than its factorization.

23142441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102031.

The product of its digits is 768, while the sum is 21.

The square root of 23142441 is about 4810.6591024516. The cubic root of 23142441 is about 284.9725673811.

Adding to 23142441 its reverse (14424132), we get a palindrome (37566573).

The spelling of 23142441 in words is "twenty-three million, one hundred forty-two thousand, four hundred forty-one".

Divisors: 1 3 7 21 1102021 3306063 7714147 23142441