Search a number
-
+
154425001 = 509303389
BaseRepresentation
bin10010011010001…
…01011010101001
3101202120121021111
421031011122221
5304013100001
623153510321
73553406443
oct1115053251
9352517244
10154425001
117a194875
12438723a1
1325cbb053
141671b493
15d855851
hex93456a9

154425001 has 4 divisors (see below), whose sum is σ = 154728900. Its totient is φ = 154121104.

The previous prime is 154424999. The next prime is 154425023. The reversal of 154425001 is 100524451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100524451 = 175913203.

It can be written as a sum of positive squares in 2 ways, for example, as 108659776 + 45765225 = 10424^2 + 6765^2 .

It is a cyclic number.

It is not a de Polignac number, because 154425001 - 21 = 154424999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154425041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151186 + ... + 152203.

It is an arithmetic number, because the mean of its divisors is an integer number (38682225).

Almost surely, 2154425001 is an apocalyptic number.

It is an amenable number.

154425001 is a deficient number, since it is larger than the sum of its proper divisors (303899).

154425001 is an equidigital number, since it uses as much as digits as its factorization.

154425001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303898.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 154425001 is about 12426.7856262189. The cubic root of 154425001 is about 536.5034729205.

Adding to 154425001 its reverse (100524451), we get a palindrome (254949452).

The spelling of 154425001 in words is "one hundred fifty-four million, four hundred twenty-five thousand, one".

Divisors: 1 509 303389 154425001