Search a number
-
+
144640082 = 2227331817
BaseRepresentation
bin10001001111100…
…00100001010010
3101002011110220002
420213300201102
5244011440312
622204050002
73404264126
oct1047604122
9332143802
10144640082
1174711264
1240533902
1323c73362
14152d1586
15ca714c2
hex89f0852

144640082 has 8 divisors (see below), whose sum is σ = 217062396. Its totient is φ = 72285952.

The previous prime is 144640051. The next prime is 144640091. The reversal of 144640082 is 280046441.

It can be written as a sum of positive squares in 2 ways, for example, as 116877721 + 27762361 = 10811^2 + 5269^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 11363 + ... + 20454.

Almost surely, 2144640082 is an apocalyptic number.

144640082 is a deficient number, since it is larger than the sum of its proper divisors (72422314).

144640082 is a wasteful number, since it uses less digits than its factorization.

144640082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34092.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 144640082 is about 12026.6405117971. The cubic root of 144640082 is about 524.9237464459.

The spelling of 144640082 in words is "one hundred forty-four million, six hundred forty thousand, eighty-two".

Divisors: 1 2 2273 4546 31817 63634 72320041 144640082