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144434254 = 2274126347
BaseRepresentation
bin10001001101111…
…10010001001110
3101001210000112211
420212332101032
5243433344004
622155421034
73402446056
oct1046762116
9331700484
10144434254
1174590658
124045477a
1323c00773
141527a566
15ca30504
hex89be44e

144434254 has 8 divisors (see below), whose sum is σ = 216738648. Its totient is φ = 72188040.

The previous prime is 144434249. The next prime is 144434263. The reversal of 144434254 is 452434441.

144434254 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.

It is a super-2 number, since 2×1444342542 = 41722507457073032, which contains 22 as substring.

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, 7692 + ... + 18655.

It is an arithmetic number, because the mean of its divisors is an integer number (27092331).

Almost surely, 2144434254 is an apocalyptic number.

144434254 is a deficient number, since it is larger than the sum of its proper divisors (72304394).

144434254 is a wasteful number, since it uses less digits than its factorization.

144434254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29090.

The product of its digits is 30720, while the sum is 31.

The square root of 144434254 is about 12018.0802959541. The cubic root of 144434254 is about 524.6746331662.

Adding to 144434254 its reverse (452434441), we get a palindrome (596868695).

The spelling of 144434254 in words is "one hundred forty-four million, four hundred thirty-four thousand, two hundred fifty-four".

Divisors: 1 2 2741 5482 26347 52694 72217127 144434254