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23031042 = 233838507
BaseRepresentation
bin101011111011…
…0110100000010
31121100002122120
41113312310002
521343443132
62141345110
7366521616
oct127666402
947302576
1023031042
1112000621
127868196
134a04c48
1430b7346
15204e02c
hex15f6d02

23031042 has 8 divisors (see below), whose sum is σ = 46062096. Its totient is φ = 7677012.

The previous prime is 23030999. The next prime is 23031061. The reversal of 23031042 is 24013032.

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

23031042 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919248 + ... + 1919259.

It is an arithmetic number, because the mean of its divisors is an integer number (5757762).

Almost surely, 223031042 is an apocalyptic number.

23031042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23031042 is a wasteful number, since it uses less digits than its factorization.

23031042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838512.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23031042 is about 4799.0667842821. The cubic root of 23031042 is about 284.5145815114.

Adding to 23031042 its reverse (24013032), we get a palindrome (47044074).

The spelling of 23031042 in words is "twenty-three million, thirty-one thousand, forty-two".

Divisors: 1 2 3 6 3838507 7677014 11515521 23031042