Search a number
30012754 = 215006377
BaseRepresentation
bin111001001111…
…1010101010010
32002110210202111
41302133111102
530140402004
62551135534
7513050512
oct162372522
962423674
1030012754
1115a3a032
12a0745aa
1362aaa35
143db3842
15297ca04
hex1c9f552

30012754 has 4 divisors (see below), whose sum is σ = 45019134. Its totient is φ = 15006376.

The previous prime is 30012737. The next prime is 30012757. The reversal of 30012754 is 45721003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45721003 = 268317041.

It can be written as a sum of positive squares in only one way, i.e., 17867529 + 12145225 = 4227^2 + 3485^2 .

It is not an unprimeable number, because it can be changed into a prime (30012757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7503187 + ... + 7503190.

Almost surely, 230012754 is an apocalyptic number.

30012754 is a deficient number, since it is larger than the sum of its proper divisors (15006380).

30012754 is a wasteful number, since it uses less digits than its factorization.

30012754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15006379.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 30012754 is about 5478.3897269179. The cubic root of 30012754 is about 310.7672772940.

Adding to 30012754 its reverse (45721003), we get a palindrome (75733757).

The spelling of 30012754 in words is "thirty million, twelve thousand, seven hundred fifty-four".

Divisors: 1 2 15006377 30012754