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144430404 = 223101269443
BaseRepresentation
bin10001001101111…
…01010101000100
3101001202211021020
420212331111010
5243433233104
622155351140
73402431616
oct1046752504
9331684236
10144430404
1174588778
12404524b0
1323bcbaa1
1415278db6
15ca2e2d9
hex89bd544

144430404 has 48 divisors (see below), whose sum is σ = 342377280. Its totient is φ = 47382400.

The previous prime is 144430399. The next prime is 144430439. The reversal of 144430404 is 404034441.

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 15 ways as a sum of consecutive naturals, for example, 325807 + ... + 326249.

It is an arithmetic number, because the mean of its divisors is an integer number (7132860).

Almost surely, 2144430404 is an apocalyptic number.

It is an amenable number.

144430404 is an abundant number, since it is smaller than the sum of its proper divisors (197946876).

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

144430404 is a wasteful number, since it uses less digits than its factorization.

144430404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 144430404 is about 12017.9201195548. The cubic root of 144430404 is about 524.6699712636.

Adding to 144430404 its reverse (404034441), we get a palindrome (548464845).

The spelling of 144430404 in words is "one hundred forty-four million, four hundred thirty thousand, four hundred four".

Divisors: 1 2 3 4 6 12 101 202 269 303 404 443 538 606 807 886 1076 1212 1329 1614 1772 2658 3228 5316 27169 44743 54338 81507 89486 108676 119167 134229 163014 178972 238334 268458 326028 357501 476668 536916 715002 1430004 12035867 24071734 36107601 48143468 72215202 144430404