Search a number
-
+
144233401 = 13106110457
BaseRepresentation
bin10001001100011…
…01001110111001
3101001101211000211
420212031032321
5243410432101
622151231121
73400651354
oct1046151671
9331354024
10144233401
1174463764
12403784a1
1323b60210
141522729b
15c9e0c51
hex898d3b9

144233401 has 8 divisors (see below), whose sum is σ = 155489544. Its totient is φ = 133000320.

The previous prime is 144233399. The next prime is 144233407. The reversal of 144233401 is 104332441.

144233401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 34821801 + 109411600 = 5901^2 + 10460^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 144233401 - 21 = 144233399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144233407) 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, 8565 + ... + 19021.

It is an arithmetic number, because the mean of its divisors is an integer number (19436193).

Almost surely, 2144233401 is an apocalyptic number.

It is an amenable number.

144233401 is a deficient number, since it is larger than the sum of its proper divisors (11256143).

144233401 is a wasteful number, since it uses less digits than its factorization.

144233401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11531.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 144233401 is about 12009.7211041722. The cubic root of 144233401 is about 524.4313128598.

Adding to 144233401 its reverse (104332441), we get a palindrome (248565842).

It can be divided in two parts, 1442 and 33401, that added together give a palindrome (34843).

The spelling of 144233401 in words is "one hundred forty-four million, two hundred thirty-three thousand, four hundred one".

Divisors: 1 13 1061 10457 13793 135941 11094877 144233401