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324143140 = 225231993541
BaseRepresentation
bin10011010100100…
…000100000100100
3211120221011210111
4103110200200210
51130440040030
652055302404
711014112506
oct2324404044
9746834714
10324143140
11156a745a2
129067aa04
1352201c99
1431099d76
151d6cc62a
hex13520824

324143140 has 48 divisors (see below), whose sum is σ = 714067200. Its totient is φ = 123361920.

The previous prime is 324143129. The next prime is 324143143. The reversal of 324143140 is 41341423.

It is not an unprimeable number, because it can be changed into a prime (324143143) 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, 89770 + ... + 93310.

It is an arithmetic number, because the mean of its divisors is an integer number (14876400).

Almost surely, 2324143140 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 324143140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357033600).

324143140 is an abundant number, since it is smaller than the sum of its proper divisors (389924060).

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

324143140 is a wasteful number, since it uses less digits than its factorization.

324143140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772 (or 3770 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 324143140 is about 18003.9756720564. The cubic root of 324143140 is about 686.9296753301.

Adding to 324143140 its reverse (41341423), we get a palindrome (365484563).

The spelling of 324143140 in words is "three hundred twenty-four million, one hundred forty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 199 230 398 460 796 995 1990 3541 3980 4577 7082 9154 14164 17705 18308 22885 35410 45770 70820 81443 91540 162886 325772 407215 704659 814430 1409318 1628860 2818636 3523295 7046590 14093180 16207157 32414314 64828628 81035785 162071570 324143140