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144042430 = 25731411619
BaseRepresentation
bin10001001010111…
…10100110111110
3101001001010001211
420211132212332
5243333324210
622143155034
73366224530
oct1045364676
9331033054
10144042430
1174343234
12402a5a7a
1323ac430c
14151b7850
15c9a438a
hex895e9be

144042430 has 64 divisors (see below), whose sum is σ = 313528320. Its totient is φ = 46598400.

The previous prime is 144042427. The next prime is 144042473. The reversal of 144042430 is 34240441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88161 + ... + 89779.

It is an arithmetic number, because the mean of its divisors is an integer number (4898880).

Almost surely, 2144042430 is an apocalyptic number.

144042430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144042430 is an abundant number, since it is smaller than the sum of its proper divisors (169485890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144042430 is a wasteful number, since it uses less digits than its factorization.

144042430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 144042430 is about 12001.7677864555. The cubic root of 144042430 is about 524.1997543684.

Adding to 144042430 its reverse (34240441), we get a palindrome (178282871).

The spelling of 144042430 in words is "one hundred forty-four million, forty-two thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 31 35 41 62 70 82 155 205 217 287 310 410 434 574 1085 1271 1435 1619 2170 2542 2870 3238 6355 8095 8897 11333 12710 16190 17794 22666 44485 50189 56665 66379 88970 100378 113330 132758 250945 331895 351323 464653 501890 663790 702646 929306 1756615 2057749 2323265 3513230 4115498 4646530 10288745 14404243 20577490 28808486 72021215 144042430