Search a number
-
+
143244101 = 72111320443
BaseRepresentation
bin10001000100110…
…11101101000101
3100222112112222002
420202123231011
5243132302401
622114115045
73356361200
oct1042335505
9328475862
10143244101
1173948460
123bb7ba85
13238a4b30
141504a937
15c897a6b
hex889bb45

143244101 has 24 divisors (see below), whose sum is σ = 195771744. Its totient is φ = 103027680.

The previous prime is 143244089. The next prime is 143244121. The reversal of 143244101 is 101442341.

It is a de Polignac number, because none of the positive numbers 2k-143244101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143244121) 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 23 ways as a sum of consecutive naturals, for example, 3215 + ... + 17228.

It is an arithmetic number, because the mean of its divisors is an integer number (8157156).

Almost surely, 2143244101 is an apocalyptic number.

143244101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143244101 is a deficient number, since it is larger than the sum of its proper divisors (52527643).

143244101 is a wasteful number, since it uses less digits than its factorization.

143244101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20481 (or 20474 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 143244101 is about 11968.4627667884. The cubic root of 143244101 is about 523.2295324261.

Adding to 143244101 its reverse (101442341), we get a palindrome (244686442).

The spelling of 143244101 in words is "one hundred forty-three million, two hundred forty-four thousand, one hundred one".

Divisors: 1 7 11 13 49 77 91 143 539 637 1001 7007 20443 143101 224873 265759 1001707 1574111 1860313 2923349 11018777 13022191 20463443 143244101