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144211534 = 272105767
BaseRepresentation
bin10001001100001…
…11111001001110
3101001100201000221
420212013321032
5243404232114
622150541554
73400530535
oct1046077116
9331321027
10144211534
1174449295
12403678ba
1323b5328c
141521d31c
15c9d9524
hex8987e4e

144211534 has 4 divisors (see below), whose sum is σ = 216317304. Its totient is φ = 72105766.

The previous prime is 144211523. The next prime is 144211559. The reversal of 144211534 is 435112441.

144211534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435112441 = 551978839.

It is a junction number, because it is equal to n+sod(n) for n = 144211499 and 144211508.

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, 36052882 + ... + 36052885.

It is an arithmetic number, because the mean of its divisors is an integer number (54079326).

Almost surely, 2144211534 is an apocalyptic number.

144211534 is a deficient number, since it is larger than the sum of its proper divisors (72105770).

144211534 is an equidigital number, since it uses as much as digits as its factorization.

144211534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72105769.

The product of its digits is 1920, while the sum is 25.

The square root of 144211534 is about 12008.8106821617. The cubic root of 144211534 is about 524.4048087837.

Adding to 144211534 its reverse (435112441), we get a palindrome (579323975).

It can be divided in two parts, 1442 and 11534, that multiplied together give a triangular number (16632028 = T5767).

The spelling of 144211534 in words is "one hundred forty-four million, two hundred eleven thousand, five hundred thirty-four".

Divisors: 1 2 72105767 144211534