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30230540 = 2251511527
BaseRepresentation
bin111001101010…
…0100000001100
32002212212111122
41303110200030
530214334130
62555540112
7514645454
oct163244014
962785448
1030230540
111607871a
12a15a638
136355bc2
14402cd64
1529c22e5
hex1cd480c

30230540 has 12 divisors (see below), whose sum is σ = 63484176. Its totient is φ = 12092208.

The previous prime is 30230527. The next prime is 30230587. The reversal of 30230540 is 4503203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755744 + ... + 755783.

It is an arithmetic number, because the mean of its divisors is an integer number (5290348).

Almost surely, 230230540 is an apocalyptic number.

It is an amenable number.

30230540 is an abundant number, since it is smaller than the sum of its proper divisors (33253636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30230540 is a wasteful number, since it uses less digits than its factorization.

30230540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511536 (or 1511534 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 30230540 is about 5498.2306244828. The cubic root of 30230540 is about 311.5171552928.

Adding to 30230540 its reverse (4503203), we get a palindrome (34733743).

The spelling of 30230540 in words is "thirty million, two hundred thirty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 1511527 3023054 6046108 7557635 15115270 30230540