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144540212 = 22145924767
BaseRepresentation
bin10001001110110…
…00001000110100
3101001222101220012
420213120020310
5244000241322
622201555352
73403400015
oct1047301064
9331871805
10144540212
1174653223
12404a5b58
1323c39a6b
14152a700c
15ca51ae2
hex89d8234

144540212 has 12 divisors (see below), whose sum is σ = 253128960. Its totient is φ = 72217656.

The previous prime is 144540203. The next prime is 144540229. The reversal of 144540212 is 212045441.

144540212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6548 + ... + 18219.

It is an arithmetic number, because the mean of its divisors is an integer number (21094080).

Almost surely, 2144540212 is an apocalyptic number.

It is an amenable number.

144540212 is a deficient number, since it is larger than the sum of its proper divisors (108588748).

144540212 is a wasteful number, since it uses less digits than its factorization.

144540212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26230 (or 26228 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 144540212 is about 12022.4877625224. The cubic root of 144540212 is about 524.8029034903.

Adding to 144540212 its reverse (212045441), we get a palindrome (356585653).

The spelling of 144540212 in words is "one hundred forty-four million, five hundred forty thousand, two hundred twelve".

Divisors: 1 2 4 1459 2918 5836 24767 49534 99068 36135053 72270106 144540212