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2305130388 = 2231119919111
BaseRepresentation
bin1000100101100101…
…0111111110010100
312221122111202102120
42021121113332110
514210103133023
61020422535540
7111060166521
oct21131277624
95848452376
102305130388
11a83205640
12543b975b0
132a97503a2
1417c206148
15d75868e3
hex89657f94

2305130388 has 48 divisors (see below), whose sum is σ = 6176432640. Its totient is φ = 661759200.

The previous prime is 2305130381. The next prime is 2305130389. The reversal of 2305130388 is 8830315032.

It is a super-2 number, since 2×23051303882 = 10627252211362061088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2305130381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457048 + ... + 462063.

It is an arithmetic number, because the mean of its divisors is an integer number (128675680).

Almost surely, 22305130388 is an apocalyptic number.

It is an amenable number.

2305130388 is an abundant number, since it is smaller than the sum of its proper divisors (3871302252).

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

2305130388 is a wasteful number, since it uses less digits than its factorization.

2305130388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919148 (or 919146 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2305130388 is about 48011.7734311075. The cubic root of 2305130388 is about 1320.9868630242.

The spelling of 2305130388 in words is "two billion, three hundred five million, one hundred thirty thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 19 22 33 38 44 57 66 76 114 132 209 228 418 627 836 1254 2508 919111 1838222 2757333 3676444 5514666 10110221 11029332 17463109 20220442 30330663 34926218 40440884 52389327 60661326 69852436 104778654 121322652 192094199 209557308 384188398 576282597 768376796 1152565194 2305130388