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30117386 = 2131158361
BaseRepresentation
bin111001011100…
…0111000001010
32002200010021202
41302320320022
530202224021
62553304202
7513664535
oct162707012
962603252
1030117386
1116000702
12a105062
136316550
143ddda1c
15299da0b
hex1cb8e0a

30117386 has 8 divisors (see below), whose sum is σ = 48651204. Its totient is φ = 13900320.

The previous prime is 30117383. The next prime is 30117389. The reversal of 30117386 is 68371103.

It is an interprime number because it is at equal distance from previous prime (30117383) and next prime (30117389).

It can be written as a sum of positive squares in 2 ways, for example, as 26988025 + 3129361 = 5195^2 + 1769^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30117383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579155 + ... + 579206.

Almost surely, 230117386 is an apocalyptic number.

30117386 is a deficient number, since it is larger than the sum of its proper divisors (18533818).

30117386 is a wasteful number, since it uses less digits than its factorization.

30117386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158376.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 30117386 is about 5487.9309397987. The cubic root of 30117386 is about 311.1279960318.

Adding to 30117386 its reverse (68371103), we get a palindrome (98488489).

It can be divided in two parts, 30117 and 386, that added together give a palindrome (30503).

The spelling of 30117386 in words is "thirty million, one hundred seventeen thousand, three hundred eighty-six".

Divisors: 1 2 13 26 1158361 2316722 15058693 30117386