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30001115 = 557710399
BaseRepresentation
bin111001001110…
…0011111011011
32002110012210102
41302130133123
530140013430
62551010015
7513001544
oct162343733
962405712
1030001115
1115a31311
12a06990b
1362a5651
143dad4cb
152979345
hex1c9c7db

30001115 has 8 divisors (see below), whose sum is σ = 36067200. Its totient is φ = 23956992.

The previous prime is 30001093. The next prime is 30001123. The reversal of 30001115 is 51110003.

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

It is a cyclic number.

It is not a de Polignac number, because 30001115 - 216 = 29935579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30001096 and 30001105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2315 + ... + 8084.

It is an arithmetic number, because the mean of its divisors is an integer number (4508400).

Almost surely, 230001115 is an apocalyptic number.

30001115 is a deficient number, since it is larger than the sum of its proper divisors (6066085).

30001115 is a wasteful number, since it uses less digits than its factorization.

30001115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10981.

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 30001115 is about 5477.3273592145. The cubic root of 30001115 is about 310.7271000635.

Adding to 30001115 its reverse (51110003), we get a palindrome (81111118).

The spelling of 30001115 in words is "thirty million, one thousand, one hundred fifteen".

Divisors: 1 5 577 2885 10399 51995 6000223 30001115