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23030144 = 27179923
BaseRepresentation
bin101011111011…
…0100110000000
31121100001102022
41113312212000
521343431034
62141341012
7366516164
oct127664600
947301368
1023030144
1111aaa985
127867768
134a04707
1430b6ca4
15204db2e
hex15f6980

23030144 has 16 divisors (see below), whose sum is σ = 45880620. Its totient is φ = 11515008.

The previous prime is 23030131. The next prime is 23030167. The reversal of 23030144 is 44103032.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89834 + ... + 90089.

Almost surely, 223030144 is an apocalyptic number.

It is an amenable number.

23030144 is a deficient number, since it is larger than the sum of its proper divisors (22850476).

23030144 is an equidigital number, since it uses as much as digits as its factorization.

23030144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179937 (or 179925 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23030144 is about 4798.9732235135. The cubic root of 23030144 is about 284.5108836411.

Adding to 23030144 its reverse (44103032), we get a palindrome (67133176).

The spelling of 23030144 in words is "twenty-three million, thirty thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 64 128 179923 359846 719692 1439384 2878768 5757536 11515072 23030144