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144313512 = 233719291559
BaseRepresentation
bin10001001101000…
…00110010101000
3101001112212220220
420212200302220
5243421013022
622153050040
73401434050
oct1046406250
9331485826
10144313512
1174508972
12403b6920
1323b8a815
1415248560
15ca0985c
hex89a0ca8

144313512 has 128 divisors (see below), whose sum is σ = 449280000. Its totient is φ = 37691136.

The previous prime is 144313489. The next prime is 144313513. The reversal of 144313512 is 215313441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (144313513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91789 + ... + 93347.

It is an arithmetic number, because the mean of its divisors is an integer number (3510000).

Almost surely, 2144313512 is an apocalyptic number.

144313512 is a gapful number since it is divisible by the number (12) 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 144313512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224640000).

144313512 is an abundant number, since it is smaller than the sum of its proper divisors (304966488).

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

144313512 is a wasteful number, since it uses less digits than its factorization.

144313512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1619 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 144313512 is about 12013.0558976474. The cubic root of 144313512 is about 524.5283891743.

Adding to 144313512 its reverse (215313441), we get a palindrome (359626953).

The spelling of 144313512 in words is "one hundred forty-four million, three hundred thirteen thousand, five hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 19 21 24 28 29 38 42 56 57 58 76 84 87 114 116 133 152 168 174 203 228 232 266 348 399 406 456 532 551 609 696 798 812 1064 1102 1218 1559 1596 1624 1653 2204 2436 3118 3192 3306 3857 4408 4677 4872 6236 6612 7714 9354 10913 11571 12472 13224 15428 18708 21826 23142 29621 30856 32739 37416 43652 45211 46284 59242 65478 87304 88863 90422 92568 118484 130956 135633 177726 180844 207347 236968 261912 271266 316477 355452 361688 414694 542532 622041 632954 710904 829388 859009 949431 1085064 1244082 1265908 1658776 1718018 1898862 2488164 2531816 2577027 3436036 3797724 4976328 5154054 6013063 6872072 7595448 10308108 12026126 18039189 20616216 24052252 36078378 48104504 72156756 144313512