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144471250 = 2547111979
BaseRepresentation
bin10001001110001…
…11010011010010
3101001211220022001
420213013103102
5243441040000
622200304214
73402661660
oct1047072322
9331756261
10144471250
1174606430
124047206a
1323c14561
1415289c30
15ca3b46a
hex89c74d2

144471250 has 160 divisors (see below), whose sum is σ = 359884800. Its totient is φ = 42120000.

The previous prime is 144471247. The next prime is 144471259. The reversal of 144471250 is 52174441.

It is not an unprimeable number, because it can be changed into a prime (144471259) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 1828711 + ... + 1828789.

It is an arithmetic number, because the mean of its divisors is an integer number (2249280).

Almost surely, 2144471250 is an apocalyptic number.

144471250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144471250 is an abundant number, since it is smaller than the sum of its proper divisors (215413550).

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

144471250 is a wasteful number, since it uses less digits than its factorization.

144471250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 144471250 is about 12019.6193783331. The cubic root of 144471250 is about 524.7194268009.

The spelling of 144471250 in words is "one hundred forty-four million, four hundred seventy-one thousand, two hundred fifty".

Divisors: 1 2 5 7 10 11 14 19 22 25 35 38 50 55 70 77 79 95 110 125 133 154 158 175 190 209 250 266 275 350 385 395 418 475 550 553 625 665 770 790 869 875 950 1045 1106 1250 1330 1375 1463 1501 1738 1750 1925 1975 2090 2375 2750 2765 2926 3002 3325 3850 3950 4345 4375 4750 5225 5530 6083 6650 6875 7315 7505 8690 8750 9625 9875 10450 10507 11875 12166 13750 13825 14630 15010 16511 16625 19250 19750 21014 21725 23750 26125 27650 30415 33022 33250 36575 37525 43450 48125 49375 52250 52535 60830 69125 73150 75050 82555 83125 96250 98750 105070 108625 115577 130625 138250 152075 165110 166250 182875 187625 217250 231154 261250 262675 304150 345625 365750 375250 412775 525350 543125 577885 691250 760375 825550 914375 938125 1086250 1155770 1313375 1520750 1828750 1876250 2063875 2626750 2889425 3801875 4127750 5778850 6566875 7603750 10319375 13133750 14447125 20638750 28894250 72235625 144471250