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143441452 = 227113741307
BaseRepresentation
bin10001000110010…
…11111000101100
3100222220120200101
420203023320230
5243210111302
622122240444
73361142440
oct1043137054
9328816611
10143441452
1173a72760
1240056124
13239438cb
141509c820
15c8d6287
hex88cbe2c

143441452 has 96 divisors (see below), whose sum is σ = 330333696. Its totient is φ = 52876800.

The previous prime is 143441447. The next prime is 143441483. The reversal of 143441452 is 254144341.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 143441452.

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 31 ways as a sum of consecutive naturals, for example, 467083 + ... + 467389.

It is an arithmetic number, because the mean of its divisors is an integer number (3440976).

Almost surely, 2143441452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143441452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165166848).

143441452 is an abundant number, since it is smaller than the sum of its proper divisors (186892244).

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

143441452 is a wasteful number, since it uses less digits than its factorization.

143441452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 405 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 143441452 is about 11976.7045550936. The cubic root of 143441452 is about 523.4697109879.

Adding to 143441452 its reverse (254144341), we get a palindrome (397585793).

The spelling of 143441452 in words is "one hundred forty-three million, four hundred forty-one thousand, four hundred fifty-two".

Divisors: 1 2 4 7 11 14 22 28 37 41 44 74 77 82 148 154 164 259 287 307 308 407 451 518 574 614 814 902 1036 1148 1228 1517 1628 1804 2149 2849 3034 3157 3377 4298 5698 6068 6314 6754 8596 10619 11359 11396 12587 12628 13508 16687 21238 22718 23639 25174 33374 42476 45436 47278 50348 66748 79513 88109 94556 116809 124949 138457 159026 176218 233618 249898 276914 318052 352436 465719 467236 499796 553828 874643 931438 969199 1749286 1862876 1938398 3260033 3498572 3876796 5122909 6520066 10245818 13040132 20491636 35860363 71720726 143441452