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30905114 = 215452557
BaseRepresentation
bin111010111100…
…1001100011010
32011011010211212
41311321030122
530402430424
63022223122
7523455242
oct165711432
964133755
1030905114
1116499519
12a424aa2
136530c66
144166b22
152aa710e
hex1d7931a

30905114 has 4 divisors (see below), whose sum is σ = 46357674. Its totient is φ = 15452556.

The previous prime is 30905113. The next prime is 30905129. The reversal of 30905114 is 41150903.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 30858025 + 47089 = 5555^2 + 217^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30905114.

It is not an unprimeable number, because it can be changed into a prime (30905113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7726277 + ... + 7726280.

Almost surely, 230905114 is an apocalyptic number.

30905114 is a deficient number, since it is larger than the sum of its proper divisors (15452560).

30905114 is a wasteful number, since it uses less digits than its factorization.

30905114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15452559.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 30905114 is about 5559.2368181253. The cubic root of 30905114 is about 313.8172290234.

The spelling of 30905114 in words is "thirty million, nine hundred five thousand, one hundred fourteen".

Divisors: 1 2 15452557 30905114