Search a number
-
+
143608398 = 2339760289
BaseRepresentation
bin10001000111101…
…00101001001110
3101000020001200120
420203310221032
5243230432043
622130005410
73362436243
oct1043645116
9330201616
10143608398
117407712a
1240116866
13239a18ab
14151035ca
15c91a983
hex88f4a4e

143608398 has 16 divisors (see below), whose sum is σ = 287945040. Its totient is φ = 47748096.

The previous prime is 143608393. The next prime is 143608417. The reversal of 143608398 is 893806341.

It is a happy number.

It is a super-2 number, since 2×1436083982 = 41246743952252808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143608393) 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 7 ways as a sum of consecutive naturals, for example, 27763 + ... + 32526.

It is an arithmetic number, because the mean of its divisors is an integer number (17996565).

Almost surely, 2143608398 is an apocalyptic number.

143608398 is an abundant number, since it is smaller than the sum of its proper divisors (144336642).

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

143608398 is a wasteful number, since it uses less digits than its factorization.

143608398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60691.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 143608398 is about 11983.6721417102. The cubic root of 143608398 is about 523.6727143534.

The spelling of 143608398 in words is "one hundred forty-three million, six hundred eight thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 397 794 1191 2382 60289 120578 180867 361734 23934733 47869466 71804199 143608398