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30117103 = 61677369
BaseRepresentation
bin111001011100…
…0110011101111
32002200002220021
41302320303233
530202221403
62553303011
7513663652
oct162706357
962602807
1030117103
1116000475
12a104a67
136316393
143ddd899
15299d8bd
hex1cb8cef

30117103 has 8 divisors (see below), whose sum is σ = 31071920. Its totient is φ = 29177280.

The previous prime is 30117079. The next prime is 30117127. The reversal of 30117103 is 30171103.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30117079) and next prime (30117127).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30117103 is a prime.

It is a super-2 number, since 2×301171032 = 1814079786225218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30117193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403 + ... + 7771.

It is an arithmetic number, because the mean of its divisors is an integer number (3883990).

Almost surely, 230117103 is an apocalyptic number.

30117103 is a deficient number, since it is larger than the sum of its proper divisors (954817).

30117103 is an equidigital number, since it uses as much as digits as its factorization.

30117103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7497.

The product of its (nonzero) digits is 63, while the sum is 16.

The square root of 30117103 is about 5487.9051558860. The cubic root of 30117103 is about 311.1270215172.

Adding to 30117103 its reverse (30171103), we get a palindrome (60288206).

The spelling of 30117103 in words is "thirty million, one hundred seventeen thousand, one hundred three".

Divisors: 1 61 67 4087 7369 449509 493723 30117103