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2113131230 = 257107282127
BaseRepresentation
bin111110111110011…
…1101001011011110
312110021020012002122
41331330331023132
513311430144410
6545403422542
7103236214310
oct17574751336
95407205078
102113131230
11994897851
124ab824a52
13278a37a12
141609077b0
15c57ace55
hex7df3d2de

2113131230 has 32 divisors (see below), whose sum is σ = 4387654656. Its totient is φ = 717728544.

The previous prime is 2113131199. The next prime is 2113131257. The reversal of 2113131230 is 321313112.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2113131199 and 2113131208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133574 + ... + 148553.

It is an arithmetic number, because the mean of its divisors is an integer number (137114208).

Almost surely, 22113131230 is an apocalyptic number.

2113131230 is an abundant number, since it is smaller than the sum of its proper divisors (2274523426).

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

2113131230 is a wasteful number, since it uses less digits than its factorization.

2113131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282248.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2113131230 is about 45968.8071413649. The cubic root of 2113131230 is about 1283.2427604975.

Adding to 2113131230 its reverse (321313112), we get a palindrome (2434444342).

The spelling of 2113131230 in words is "two billion, one hundred thirteen million, one hundred thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 107 214 535 749 1070 1498 3745 7490 282127 564254 1410635 1974889 2821270 3949778 9874445 19748890 30187589 60375178 150937945 211313123 301875890 422626246 1056565615 2113131230