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30210113 = 109277157
BaseRepresentation
bin111001100111…
…1100001000001
32002211211111002
41303033201001
530213210423
62555301345
7514532063
oct163174101
962754432
1030210113
111606433a
12a14a855
13634980b
144025733
1529bb228
hex1ccf841

30210113 has 4 divisors (see below), whose sum is σ = 30487380. Its totient is φ = 29932848.

The previous prime is 30210043. The next prime is 30210127. The reversal of 30210113 is 31101203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17372224 + 12837889 = 4168^2 + 3583^2 .

It is a cyclic number.

It is not a de Polignac number, because 30210113 - 28 = 30209857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30210094 and 30210103.

It is not an unprimeable number, because it can be changed into a prime (30210163) 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, 138470 + ... + 138687.

It is an arithmetic number, because the mean of its divisors is an integer number (7621845).

Almost surely, 230210113 is an apocalyptic number.

It is an amenable number.

30210113 is a deficient number, since it is larger than the sum of its proper divisors (277267).

30210113 is a wasteful number, since it uses less digits than its factorization.

30210113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277266.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 30210113 is about 5496.3727129808. The cubic root of 30210113 is about 311.4469746661.

Adding to 30210113 its reverse (31101203), we get a palindrome (61311316).

The spelling of 30210113 in words is "thirty million, two hundred ten thousand, one hundred thirteen".

Divisors: 1 109 277157 30210113