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30025111 = 171992957
BaseRepresentation
bin111001010001…
…0010110010111
32002111102201011
41302202112113
530141300421
62551313051
7513131524
oct162422627
962442634
1030025111
1115a48346
12a07b787
1362b354c
143db814b
1529814e1
hex1ca2597

30025111 has 8 divisors (see below), whose sum is σ = 33464880. Its totient is φ = 26771328.

The previous prime is 30025103. The next prime is 30025123. The reversal of 30025111 is 11152003.

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

It is not a de Polignac number, because 30025111 - 23 = 30025103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30025091 and 30025100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30025181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46156 + ... + 46801.

It is an arithmetic number, because the mean of its divisors is an integer number (4183110).

Almost surely, 230025111 is an apocalyptic number.

30025111 is a deficient number, since it is larger than the sum of its proper divisors (3439769).

30025111 is a wasteful number, since it uses less digits than its factorization.

30025111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92993.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 30025111 is about 5479.5174057576. The cubic root of 30025111 is about 310.8099216571.

Adding to 30025111 its reverse (11152003), we get a palindrome (41177114).

The spelling of 30025111 in words is "thirty million, twenty-five thousand, one hundred eleven".

Divisors: 1 17 19 323 92957 1580269 1766183 30025111