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144711242 = 21317327401
BaseRepresentation
bin10001010000000…
…01111001001010
3101002022002111122
420220001321022
5244021224432
622205355242
73405011444
oct1050017112
9332262448
10144711242
117475a775
1240568b22
1323c99870
141530d494
15ca87612
hex8a01e4a

144711242 has 16 divisors (see below), whose sum is σ = 247515912. Its totient is φ = 62860800.

The previous prime is 144711209. The next prime is 144711257. The reversal of 144711242 is 242117441.

144711242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 104019601 + 40691641 = 10199^2 + 6379^2 .

It is a super-2 number, since 2×1447112422 = 41882687122365128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163259 + ... + 164142.

Almost surely, 2144711242 is an apocalyptic number.

144711242 is a deficient number, since it is larger than the sum of its proper divisors (102804670).

144711242 is a wasteful number, since it uses less digits than its factorization.

144711242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327433.

The product of its digits is 1792, while the sum is 26.

The square root of 144711242 is about 12029.5985801688. The cubic root of 144711242 is about 525.0098162942.

Adding to 144711242 its reverse (242117441), we get a palindrome (386828683).

The spelling of 144711242 in words is "one hundred forty-four million, seven hundred eleven thousand, two hundred forty-two".

Divisors: 1 2 13 17 26 34 221 442 327401 654802 4256213 5565817 8512426 11131634 72355621 144711242