Search a number
-
+
154103423 = 181185093
BaseRepresentation
bin10010010111101…
…10111001111111
3101201222021011012
421023312321333
5303422302143
623142545435
73550600055
oct1113667177
9351867135
10154103423
1179a95201
124373827b
1325c07876
14166761d5
15d7e0418
hex92f6e7f

154103423 has 4 divisors (see below), whose sum is σ = 154190328. Its totient is φ = 154016520.

The previous prime is 154103413. The next prime is 154103501. The reversal of 154103423 is 324301451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324301451 = 787412073.

It is a cyclic number.

It is not a de Polignac number, because 154103423 - 222 = 149909119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154103413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40736 + ... + 44357.

It is an arithmetic number, because the mean of its divisors is an integer number (38547582).

Almost surely, 2154103423 is an apocalyptic number.

154103423 is a deficient number, since it is larger than the sum of its proper divisors (86905).

154103423 is an equidigital number, since it uses as much as digits as its factorization.

154103423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86904.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 154103423 is about 12413.8399780245. The cubic root of 154103423 is about 536.1308052611.

Adding to 154103423 its reverse (324301451), we get a palindrome (478404874).

The spelling of 154103423 in words is "one hundred fifty-four million, one hundred three thousand, four hundred twenty-three".

Divisors: 1 1811 85093 154103423