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144502230 = 23533714293
BaseRepresentation
bin10001001110011…
…10110111010110
3101001220110210110
420213032313112
5243443032410
622201103450
73403151205
oct1047166726
9331813713
10144502230
1174627734
1240487b86
1323c256a2
141529723c
15ca45720
hex89cedd6

144502230 has 32 divisors (see below), whose sum is σ = 347858784. Its totient is φ = 38416896.

The previous prime is 144502223. The next prime is 144502247. The reversal of 144502230 is 32205441.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144502197 and 144502206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2964 + ... + 17256.

It is an arithmetic number, because the mean of its divisors is an integer number (10870587).

Almost surely, 2144502230 is an apocalyptic number.

144502230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144502230 is an abundant number, since it is smaller than the sum of its proper divisors (203356554).

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

144502230 is a wasteful number, since it uses less digits than its factorization.

144502230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14640.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 144502230 is about 12020.9080355853. The cubic root of 144502230 is about 524.7569305627.

Adding to 144502230 its reverse (32205441), we get a palindrome (176707671).

The spelling of 144502230 in words is "one hundred forty-four million, five hundred two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 337 674 1011 1685 2022 3370 5055 10110 14293 28586 42879 71465 85758 142930 214395 428790 4816741 9633482 14450223 24083705 28900446 48167410 72251115 144502230