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30117794 = 272151271
BaseRepresentation
bin111001011100…
…0111110100010
32002200010211212
41302320332202
530202232134
62553310122
7513665660
oct162707642
962603755
1030117794
1116000a43
12a105342
1363167a5
143dddc30
15299dbce
hex1cb8fa2

30117794 has 8 divisors (see below), whose sum is σ = 51630528. Its totient is φ = 12907620.

The previous prime is 30117779. The next prime is 30117797. The reversal of 30117794 is 49771103.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30117794.

It is not an unprimeable number, because it can be changed into a prime (30117797) 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, 1075622 + ... + 1075649.

It is an arithmetic number, because the mean of its divisors is an integer number (6453816).

Almost surely, 230117794 is an apocalyptic number.

30117794 is a deficient number, since it is larger than the sum of its proper divisors (21512734).

30117794 is a wasteful number, since it uses less digits than its factorization.

30117794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151280.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 30117794 is about 5487.9681121523. The cubic root of 30117794 is about 311.1294009750.

Adding to 30117794 its reverse (49771103), we get a palindrome (79888897).

The spelling of 30117794 in words is "thirty million, one hundred seventeen thousand, seven hundred ninety-four".

Divisors: 1 2 7 14 2151271 4302542 15058897 30117794