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144252480 = 2635178839
BaseRepresentation
bin10001001100100…
…01111001000000
3101001102210012110
420212101321000
5243412034410
622151455320
73401061111
oct1046217100
9331383173
10144252480
1174477029
1240387540
1323b68ac8
1415230208
15c9e6720
hex8991e40

144252480 has 112 divisors (see below), whose sum is σ = 484997760. Its totient is φ = 36200448.

The previous prime is 144252439. The next prime is 144252533. The reversal of 144252480 is 84252441.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 11901 + ... + 20739.

Almost surely, 2144252480 is an apocalyptic number.

144252480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144252480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242498880).

144252480 is an abundant number, since it is smaller than the sum of its proper divisors (340745280).

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

144252480 is a wasteful number, since it uses less digits than its factorization.

144252480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8876 (or 8866 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 144252480 is about 12010.5153927715. The cubic root of 144252480 is about 524.4544355295.

The spelling of 144252480 in words is "one hundred forty-four million, two hundred fifty-two thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 64 68 80 85 96 102 120 136 160 170 192 204 240 255 272 320 340 408 480 510 544 680 816 960 1020 1088 1360 1632 2040 2720 3264 4080 5440 8160 8839 16320 17678 26517 35356 44195 53034 70712 88390 106068 132585 141424 150263 176780 212136 265170 282848 300526 353560 424272 450789 530340 565696 601052 707120 751315 848544 901578 1060680 1202104 1414240 1502630 1697088 1803156 2121360 2253945 2404208 2828480 3005260 3606312 4242720 4507890 4808416 6010520 7212624 8485440 9015780 9616832 12021040 14425248 18031560 24042080 28850496 36063120 48084160 72126240 144252480