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2311130030 = 251143488611
BaseRepresentation
bin1000100111000001…
…0000101110101110
312222001210120101112
42021300100232232
514213122130110
61021155312022
7111162165266
oct21160205656
95861716345
102311130030
11a86633220
12545bab612
132aaa71181
1417cd287a6
15d7d6e405
hex89c10bae

2311130030 has 32 divisors (see below), whose sum is σ = 4643768448. Its totient is φ = 820864800.

The previous prime is 2311130023. The next prime is 2311130033. The reversal of 2311130030 is 300311132.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 2311129987 and 2311130014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311130033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239576 + ... + 249035.

It is an arithmetic number, because the mean of its divisors is an integer number (145117764).

Almost surely, 22311130030 is an apocalyptic number.

2311130030 is an abundant number, since it is smaller than the sum of its proper divisors (2332638418).

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

2311130030 is a wasteful number, since it uses less digits than its factorization.

2311130030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488672.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 2311130030 is about 48074.2137741222. The cubic root of 2311130030 is about 1322.1319294502.

Adding to 2311130030 its reverse (300311132), we get a palindrome (2611441162).

The spelling of 2311130030 in words is "two billion, three hundred eleven million, one hundred thirty thousand, thirty".

Divisors: 1 2 5 10 11 22 43 55 86 110 215 430 473 946 2365 4730 488611 977222 2443055 4886110 5374721 10749442 21010273 26873605 42020546 53747210 105051365 210102730 231113003 462226006 1155565015 2311130030