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23152142 = 213890467
BaseRepresentation
bin101100001010…
…0011000001110
31121120020202202
41120110120032
521411332032
62144121502
7400534646
oct130243016
947506682
1023152142
1112083602
127906292
134a480c0
143109526
152074d62
hex161460e

23152142 has 8 divisors (see below), whose sum is σ = 37399656. Its totient is φ = 10685592.

The previous prime is 23152139. The next prime is 23152159. The reversal of 23152142 is 24125132.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445208 + ... + 445259.

It is an arithmetic number, because the mean of its divisors is an integer number (4674957).

Almost surely, 223152142 is an apocalyptic number.

23152142 is a deficient number, since it is larger than the sum of its proper divisors (14247514).

23152142 is a wasteful number, since it uses less digits than its factorization.

23152142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890482.

The product of its digits is 480, while the sum is 20.

The square root of 23152142 is about 4811.6672786052. The cubic root of 23152142 is about 285.0123807077.

Adding to 23152142 its reverse (24125132), we get a palindrome (47277274).

The spelling of 23152142 in words is "twenty-three million, one hundred fifty-two thousand, one hundred forty-two".

Divisors: 1 2 13 26 890467 1780934 11576071 23152142