Search a number
-
+
144602742 = 23173139309
BaseRepresentation
bin10001001111001…
…11011001110110
3101002002120200010
420213213121312
5244004241432
622203201050
73404050224
oct1047473166
9332076603
10144602742
11746961a9
1240516186
1323c5c36b
14152c1b14
15ca653cc
hex89e7676

144602742 has 16 divisors (see below), whose sum is σ = 290879280. Its totient is φ = 47921952.

The previous prime is 144602719. The next prime is 144602743. The reversal of 144602742 is 247206441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144602743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68617 + ... + 70692.

It is an arithmetic number, because the mean of its divisors is an integer number (18179955).

Almost surely, 2144602742 is an apocalyptic number.

144602742 is an abundant number, since it is smaller than the sum of its proper divisors (146276538).

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

144602742 is a wasteful number, since it uses less digits than its factorization.

144602742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139487.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 144602742 is about 12025.0880246258. The cubic root of 144602742 is about 524.8785714631.

The spelling of 144602742 in words is "one hundred forty-four million, six hundred two thousand, seven hundred forty-two".

Divisors: 1 2 3 6 173 346 519 1038 139309 278618 417927 835854 24100457 48200914 72301371 144602742