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23840254 = 238930643
BaseRepresentation
bin101101011110…
…0010111111110
31122212012200101
41122330113332
522100342004
62210551314
7406432054
oct132742776
948765611
1023840254
1112503599
127b9853a
134c29379
1432481d4
15215dba4
hex16bc5fe

23840254 has 8 divisors (see below), whose sum is σ = 35853480. Its totient is φ = 11889096.

The previous prime is 23840251. The next prime is 23840279. The reversal of 23840254 is 45204832.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23840251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14544 + ... + 16099.

It is an arithmetic number, because the mean of its divisors is an integer number (4481685).

Almost surely, 223840254 is an apocalyptic number.

23840254 is a deficient number, since it is larger than the sum of its proper divisors (12013226).

23840254 is a wasteful number, since it uses less digits than its factorization.

23840254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31034.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 23840254 is about 4882.6482568377. The cubic root of 23840254 is about 287.8085066406.

The spelling of 23840254 in words is "twenty-three million, eight hundred forty thousand, two hundred fifty-four".

Divisors: 1 2 389 778 30643 61286 11920127 23840254