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144143980 = 225107193349
BaseRepresentation
bin10001001011101…
…11011001101100
3101001020021100221
420211313121230
5243400101410
622145301124
73400126561
oct1045673154
9331207327
10144143980
1174402562
12403347a4
1323b2b5c6
1415202868
15c9c44da
hex897766c

144143980 has 48 divisors (see below), whose sum is σ = 307994400. Its totient is φ = 56659968.

The previous prime is 144143977. The next prime is 144143981. The reversal of 144143980 is 89341441.

It is not an unprimeable number, because it can be changed into a prime (144143981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412846 + ... + 413194.

It is an arithmetic number, because the mean of its divisors is an integer number (6416550).

Almost surely, 2144143980 is an apocalyptic number.

144143980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144143980 is an abundant number, since it is smaller than the sum of its proper divisors (163850420).

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

144143980 is a wasteful number, since it uses less digits than its factorization.

144143980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 144143980 is about 12005.9976678325. The cubic root of 144143980 is about 524.3229124784.

The spelling of 144143980 in words is "one hundred forty-four million, one hundred forty-three thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 107 193 214 349 386 428 535 698 772 965 1070 1396 1745 1930 2140 3490 3860 6980 20651 37343 41302 67357 74686 82604 103255 134714 149372 186715 206510 269428 336785 373430 413020 673570 746860 1347140 7207199 14414398 28828796 36035995 72071990 144143980