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30108613 is a prime number
BaseRepresentation
bin111001011011…
…0101111000101
32002122200020211
41302312233011
530201433423
62553155421
7513630133
oct162665705
962580224
1030108613
1115aa5057
12a0bbb71
136312562
143dda753
15299b10d
hex1cb6bc5

30108613 has 2 divisors, whose sum is σ = 30108614. Its totient is φ = 30108612.

The previous prime is 30108607. The next prime is 30108619. The reversal of 30108613 is 31680103.

It is a balanced prime because it is at equal distance from previous prime (30108607) and next prime (30108619).

It can be written as a sum of positive squares in only one way, i.e., 30107169 + 1444 = 5487^2 + 38^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30108613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30108619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15054306 + 15054307.

It is an arithmetic number, because the mean of its divisors is an integer number (15054307).

Almost surely, 230108613 is an apocalyptic number.

It is an amenable number.

30108613 is a deficient number, since it is larger than the sum of its proper divisors (1).

30108613 is an equidigital number, since it uses as much as digits as its factorization.

30108613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 30108613 is about 5487.1315821657. The cubic root of 30108613 is about 311.0977832395.

Adding to 30108613 its reverse (31680103), we get a palindrome (61788716).

The spelling of 30108613 in words is "thirty million, one hundred eight thousand, six hundred thirteen".