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144434454 = 2324072409
BaseRepresentation
bin10001001101111…
…10010100010110
3101001210000211020
420212332110112
5243433400304
622155422010
73402446463
oct1046762426
9331700736
10144434454
117459081a
1240454906
1323c00898
141527a66a
15ca305d9
hex89be516

144434454 has 8 divisors (see below), whose sum is σ = 288868920. Its totient is φ = 48144816.

The previous prime is 144434441. The next prime is 144434473. The reversal of 144434454 is 454434441.

144434454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

144434454 is an admirable number.

It is a super-2 number, since 2×1444344542 = 41722623004556232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 12036199 + ... + 12036210.

It is an arithmetic number, because the mean of its divisors is an integer number (36108615).

Almost surely, 2144434454 is an apocalyptic number.

144434454 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.

144434454 is a wasteful number, since it uses less digits than its factorization.

144434454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24072414.

The product of its digits is 61440, while the sum is 33.

The square root of 144434454 is about 12018.0886167477. The cubic root of 144434454 is about 524.6748753407.

Adding to 144434454 its reverse (454434441), we get a palindrome (598868895).

The spelling of 144434454 in words is "one hundred forty-four million, four hundred thirty-four thousand, four hundred fifty-four".

Divisors: 1 2 3 6 24072409 48144818 72217227 144434454