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30288326 = 215144163
BaseRepresentation
bin111001110001…
…0100111000110
32002222210202212
41303202213012
530223211301
63001103422
7515306105
oct163424706
962883685
1030288326
1116108082
12a187b72
1363762b3
14404603c
1529d44bb
hex1ce29c6

30288326 has 4 divisors (see below), whose sum is σ = 45432492. Its totient is φ = 15144162.

The previous prime is 30288319. The next prime is 30288329. The reversal of 30288326 is 62388203.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 30288292 and 30288301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30288329) 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 as a sum of consecutive naturals, namely, 7572080 + ... + 7572083.

It is an arithmetic number, because the mean of its divisors is an integer number (11358123).

Almost surely, 230288326 is an apocalyptic number.

30288326 is a deficient number, since it is larger than the sum of its proper divisors (15144166).

30288326 is a wasteful number, since it uses less digits than its factorization.

30288326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15144165.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 30288326 is about 5503.4830789237. The cubic root of 30288326 is about 311.7155184115.

The spelling of 30288326 in words is "thirty million, two hundred eighty-eight thousand, three hundred twenty-six".

Divisors: 1 2 15144163 30288326