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30135115 = 56027023
BaseRepresentation
bin111001011110…
…1001101001011
32002201000121101
41302331031023
530203310430
62553522231
7514100323
oct162751513
962630541
1030135115
1116012a5a
12a113377
13632163a
144006283
1529a3dca
hex1cbd34b

30135115 has 4 divisors (see below), whose sum is σ = 36162144. Its totient is φ = 24108088.

The previous prime is 30135113. The next prime is 30135139. The reversal of 30135115 is 51153103.

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

It is a cyclic number.

It is not a de Polignac number, because 30135115 - 21 = 30135113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30135092 and 30135101.

It is not an unprimeable number, because it can be changed into a prime (30135113) 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, 3013507 + ... + 3013516.

It is an arithmetic number, because the mean of its divisors is an integer number (9040536).

Almost surely, 230135115 is an apocalyptic number.

30135115 is a deficient number, since it is larger than the sum of its proper divisors (6027029).

30135115 is an equidigital number, since it uses as much as digits as its factorization.

30135115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6027028.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 30135115 is about 5489.5459739399. The cubic root of 30135115 is about 311.1890339347.

Adding to 30135115 its reverse (51153103), we get a palindrome (81288218).

It can be divided in two parts, 3013 and 5115, that added together give a triangular number (8128 = T127).

The spelling of 30135115 in words is "thirty million, one hundred thirty-five thousand, one hundred fifteen".

Divisors: 1 5 6027023 30135115