Search a number
-
+
143211430 = 2524735791
BaseRepresentation
bin10001000100100…
…11101110100110
3100222110220011001
420202103232212
5243130231210
622113303514
73356164015
oct1042235646
9328426131
10143211430
117392595a
123bb64b9a
1323892cbb
141503ca7c
15c88d03a
hex8893ba6

143211430 has 16 divisors (see below), whose sum is σ = 257929344. Its totient is φ = 57251520.

The previous prime is 143211421. The next prime is 143211463. The reversal of 143211430 is 34112341.

It is a junction number, because it is equal to n+sod(n) for n = 143211398 and 143211407.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 21835 + ... + 27625.

It is an arithmetic number, because the mean of its divisors is an integer number (16120584).

Almost surely, 2143211430 is an apocalyptic number.

143211430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143211430 is a deficient number, since it is larger than the sum of its proper divisors (114717914).

143211430 is a wasteful number, since it uses less digits than its factorization.

143211430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8271.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 143211430 is about 11967.0978102462. The cubic root of 143211430 is about 523.1897501437.

Adding to 143211430 its reverse (34112341), we get a palindrome (177323771).

It can be divided in two parts, 143211 and 430, that added together give a square (143641 = 3792).

The spelling of 143211430 in words is "one hundred forty-three million, two hundred eleven thousand, four hundred thirty".

Divisors: 1 2 5 10 2473 4946 5791 11582 12365 24730 28955 57910 14321143 28642286 71605715 143211430