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2321213130 = 2325233730307
BaseRepresentation
bin1000101001011010…
…1110011011001010
312222202202211210200
42022112232123022
514223212310010
61022155353030
7111343662135
oct21226563312
95882684720
102321213130
11a9129a865
12549452776
132acb917c2
141803d121c
15d8bb1cc0
hex8a5ae6ca

2321213130 has 96 divisors (see below), whose sum is σ = 6467969664. Its totient is φ = 576056448.

The previous prime is 2321213113. The next prime is 2321213131. The reversal of 2321213130 is 313121232.

2321213130 is a `hidden beast` number, since 2 + 321 + 213 + 130 = 666.

2321213130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2321213131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61437 + ... + 91743.

It is an arithmetic number, because the mean of its divisors is an integer number (67374684).

Almost surely, 22321213130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2321213130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3233984832).

2321213130 is an abundant number, since it is smaller than the sum of its proper divisors (4146756534).

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

2321213130 is a wasteful number, since it uses less digits than its factorization.

2321213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30380 (or 30377 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2321213130 is about 48178.9697897329. The cubic root of 2321213130 is about 1324.0518918122.

Adding to 2321213130 its reverse (313121232), we get a palindrome (2634334362).

The spelling of 2321213130 in words is "two billion, three hundred twenty-one million, two hundred thirteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 37 45 46 69 74 90 111 115 138 185 207 222 230 333 345 370 414 555 666 690 851 1035 1110 1665 1702 2070 2553 3330 4255 5106 7659 8510 12765 15318 25530 30307 38295 60614 76590 90921 151535 181842 272763 303070 454605 545526 697061 909210 1121359 1363815 1394122 2091183 2242718 2727630 3364077 3485305 4182366 5606795 6273549 6728154 6970610 10092231 10455915 11213590 12547098 16820385 20184462 20911830 25791257 31367745 33640770 50461155 51582514 62735490 77373771 100922310 128956285 154747542 232121313 257912570 386868855 464242626 773737710 1160606565 2321213130