Search a number
-
+
143323452 = 22332967683
BaseRepresentation
bin10001000101011…
…11000100111100
3100222200120211000
420202233010330
5243142322302
622115530300
73360141426
oct1042570474
9328616730
10143323452
11739a2038
123bbb9990
1323901c9c
141506b816
15c8b131c
hex88af13c

143323452 has 96 divisors (see below), whose sum is σ = 390700800. Its totient is φ = 45372096.

The previous prime is 143323451. The next prime is 143323463. The reversal of 143323452 is 254323341.

It is a super-2 number, since 2×1433234522 = 41083223786392608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143323451) 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 31 ways as a sum of consecutive naturals, for example, 209503 + ... + 210185.

It is an arithmetic number, because the mean of its divisors is an integer number (4069800).

Almost surely, 2143323452 is an apocalyptic number.

143323452 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 143323452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195350400).

143323452 is an abundant number, since it is smaller than the sum of its proper divisors (247377348).

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

143323452 is a wasteful number, since it uses less digits than its factorization.

143323452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792 (or 784 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 143323452 is about 11971.7773116610. Note that the first 3 decimals coincide. The cubic root of 143323452 is about 523.3261300571.

Adding to 143323452 its reverse (254323341), we get a palindrome (397646793).

The spelling of 143323452 in words is "one hundred forty-three million, three hundred twenty-three thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 29 36 54 58 67 87 108 116 134 174 201 261 268 348 402 522 603 683 783 804 1044 1206 1366 1566 1809 1943 2049 2412 2732 3132 3618 3886 4098 5829 6147 7236 7772 8196 11658 12294 17487 18441 19807 23316 24588 34974 36882 39614 45761 52461 59421 69948 73764 79228 91522 104922 118842 137283 178263 183044 209844 237684 274566 356526 411849 534789 549132 713052 823698 1069578 1235547 1327069 1647396 2139156 2471094 2654138 3981207 4942188 5308276 7962414 11943621 15924828 23887242 35830863 47774484 71661726 143323452