Search a number
-
+
143740492 = 22728118269
BaseRepresentation
bin10001001000101…
…00111001001100
3101000110202212221
420210110321030
5243244143432
622132505124
73363526330
oct1044247114
9330422787
10143740492
11741573a5
124017b1a4
1323a19a5c
14151397c0
15c944b97
hex8914e4c

143740492 has 24 divisors (see below), whose sum is σ = 288519840. Its totient is φ = 61380480.

The previous prime is 143740469. The next prime is 143740507. The reversal of 143740492 is 294047341.

It is a happy number.

143740492 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1437404922 = 41322658080804128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1267 + ... + 17002.

It is an arithmetic number, because the mean of its divisors is an integer number (12021660).

Almost surely, 2143740492 is an apocalyptic number.

It is an amenable number.

143740492 is an abundant number, since it is smaller than the sum of its proper divisors (144779348).

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

143740492 is a wasteful number, since it uses less digits than its factorization.

143740492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18561 (or 18559 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 143740492 is about 11989.1822907152. The cubic root of 143740492 is about 523.8332268445.

The spelling of 143740492 in words is "one hundred forty-three million, seven hundred forty thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 281 562 1124 1967 3934 7868 18269 36538 73076 127883 255766 511532 5133589 10267178 20534356 35935123 71870246 143740492