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2331630340 = 225138967809
BaseRepresentation
bin1000101011111001…
…1101101100000100
320000111101002112021
42022332131230010
514233344132330
61023210532524
7111531350044
oct21276355404
96014332467
102331630340
11a97165426
12550a37144
132b209b230
14181943724
15d9a6d67a
hex8af9db04

2331630340 has 24 divisors (see below), whose sum is σ = 5273072280. Its totient is φ = 860909568.

The previous prime is 2331630319. The next prime is 2331630383. The reversal of 2331630340 is 430361332.

2331630340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 78039556 + 2253590784 = 8834^2 + 47472^2 .

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, 4483645 + ... + 4484164.

It is an arithmetic number, because the mean of its divisors is an integer number (219711345).

Almost surely, 22331630340 is an apocalyptic number.

2331630340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2331630340 is an abundant number, since it is smaller than the sum of its proper divisors (2941441940).

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

2331630340 is a wasteful number, since it uses less digits than its factorization.

2331630340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8967831 (or 8967829 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 2331630340 is about 48286.9582806786. The cubic root of 2331630340 is about 1326.0296427684.

Adding to 2331630340 its reverse (430361332), we get a palindrome (2761991672).

The spelling of 2331630340 in words is "two billion, three hundred thirty-one million, six hundred thirty thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 8967809 17935618 35871236 44839045 89678090 116581517 179356180 233163034 466326068 582907585 1165815170 2331630340