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30140663 = 718123789
BaseRepresentation
bin111001011111…
…0100011110111
32002201022012212
41302332203313
530204000123
62554004035
7514122440
oct162764367
962638185
1030140663
1116017143
12a11661b
136324017
1440082c7
1529a5878
hex1cbe8f7

30140663 has 8 divisors (see below), whose sum is σ = 34638240. Its totient is φ = 25691040.

The previous prime is 30140639. The next prime is 30140731. The reversal of 30140663 is 36604103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30140663 - 210 = 30139639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10628 + ... + 13161.

It is an arithmetic number, because the mean of its divisors is an integer number (4329780).

Almost surely, 230140663 is an apocalyptic number.

30140663 is a deficient number, since it is larger than the sum of its proper divisors (4497577).

30140663 is a wasteful number, since it uses less digits than its factorization.

30140663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23977.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 30140663 is about 5490.0512748061. The cubic root of 30140663 is about 311.2081298279.

Adding to 30140663 its reverse (36604103), we get a palindrome (66744766).

It can be divided in two parts, 30140 and 663, that added together give a palindrome (30803).

The spelling of 30140663 in words is "thirty million, one hundred forty thousand, six hundred sixty-three".

Divisors: 1 7 181 1267 23789 166523 4305809 30140663