Search a number
-
+
30426454 = 215213227
BaseRepresentation
bin111010000010…
…0010101010110
32010020211020201
41310010111112
530242121304
63004051114
7516422602
oct164042526
963224221
1030426454
11161a1933
12a233a9a
1363c4126
144080502
152a103a4
hex1d04556

30426454 has 4 divisors (see below), whose sum is σ = 45639684. Its totient is φ = 15213226.

The previous prime is 30426449. The next prime is 30426479. The reversal of 30426454 is 45462403.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 7606612 + ... + 7606615.

It is an arithmetic number, because the mean of its divisors is an integer number (11409921).

Almost surely, 230426454 is an apocalyptic number.

30426454 is a deficient number, since it is larger than the sum of its proper divisors (15213230).

30426454 is a wasteful number, since it uses less digits than its factorization.

30426454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15213229.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 30426454 is about 5516.0179477591. The cubic root of 30426454 is about 312.1886528912.

Adding to 30426454 its reverse (45462403), we get a palindrome (75888857).

The spelling of 30426454 in words is "thirty million, four hundred twenty-six thousand, four hundred fifty-four".

Divisors: 1 2 15213227 30426454