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144623432 = 23315311003
BaseRepresentation
bin10001001111011…
…00011101001000
3101002010122001102
420213230131020
5244010422212
622203440532
73404164442
oct1047543510
9332118042
10144623432
11746aa7a8
1240526148
1323c688c5
14152c9492
15ca6b5c2
hex89ec748

144623432 has 32 divisors (see below), whose sum is σ = 285223680. Its totient is φ = 68652480.

The previous prime is 144623429. The next prime is 144623443. The reversal of 144623432 is 234326441.

It is a junction number, because it is equal to n+sod(n) for n = 144623395 and 144623404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7643 + ... + 18645.

It is an arithmetic number, because the mean of its divisors is an integer number (8913240).

Almost surely, 2144623432 is an apocalyptic number.

It is an amenable number.

144623432 is a deficient number, since it is larger than the sum of its proper divisors (140600248).

144623432 is a wasteful number, since it uses less digits than its factorization.

144623432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11093 (or 11089 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

The square root of 144623432 is about 12025.9482786182. The cubic root of 144623432 is about 524.9036037680.

Adding to 144623432 its reverse (234326441), we get a palindrome (378949873).

The spelling of 144623432 in words is "one hundred forty-four million, six hundred twenty-three thousand, four hundred thirty-two".

Divisors: 1 2 4 8 31 53 62 106 124 212 248 424 1643 3286 6572 11003 13144 22006 44012 88024 341093 583159 682186 1166318 1364372 2332636 2728744 4665272 18077929 36155858 72311716 144623432