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23251042 = 227494229
BaseRepresentation
bin101100010110…
…0100001100010
31121202021102201
41120230201202
521423013132
62150203414
7401426203
oct130544142
947667381
1023251042
1112140941
12795356a
134a81119
1431335aa
1520942e7
hex162c862

23251042 has 8 divisors (see below), whose sum is σ = 34897500. Its totient is φ = 11618544.

The previous prime is 23251021. The next prime is 23251049. The reversal of 23251042 is 24015232.

It can be written as a sum of positive squares in 2 ways, for example, as 22762441 + 488601 = 4771^2 + 699^2 .

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

It is a super-2 number, since 2×232510422 = 1081221908171528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23251049) 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, 3384 + ... + 7612.

Almost surely, 223251042 is an apocalyptic number.

23251042 is a deficient number, since it is larger than the sum of its proper divisors (11646458).

23251042 is a wasteful number, since it uses less digits than its factorization.

23251042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6980.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23251042 is about 4821.9334296525. The cubic root of 23251042 is about 285.4176374154.

Adding to 23251042 its reverse (24015232), we get a palindrome (47266274).

The spelling of 23251042 in words is "twenty-three million, two hundred fifty-one thousand, forty-two".

Divisors: 1 2 2749 4229 5498 8458 11625521 23251042