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30905104 = 241931569
BaseRepresentation
bin111010111100…
…1001100010000
32011011010211111
41311321030100
530402430404
63022223104
7523455226
oct165711420
964133744
1030905104
111649950a
12a424a94
136530c59
144166b16
152aa7104
hex1d79310

30905104 has 10 divisors (see below), whose sum is σ = 59878670. Its totient is φ = 15452544.

The previous prime is 30905087. The next prime is 30905107. The reversal of 30905104 is 40150903.

It can be written as a sum of positive squares in only one way, i.e., 25522704 + 5382400 = 5052^2 + 2320^2 .

It is not an unprimeable number, because it can be changed into a prime (30905107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965769 + ... + 965800.

It is an arithmetic number, because the mean of its divisors is an integer number (5987867).

Almost surely, 230905104 is an apocalyptic number.

It is an amenable number.

30905104 is a deficient number, since it is larger than the sum of its proper divisors (28973566).

30905104 is a wasteful number, since it uses less digits than its factorization.

30905104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931577 (or 1931571 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 30905104 is about 5559.2359187212. The cubic root of 30905104 is about 313.8171951760.

The spelling of 30905104 in words is "thirty million, nine hundred five thousand, one hundred four".

Divisors: 1 2 4 8 16 1931569 3863138 7726276 15452552 30905104