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2811232930 = 251124371761
BaseRepresentation
bin1010011110010000…
…0000001010100010
321020220211102121011
42213210000022202
521224133423210
61142542251134
7126444041242
oct24744001242
97226742534
102811232930
11121295aa00
12665586aaa
1335a56104c
141c9509b22
15116c07d8a
hexa79002a2

2811232930 has 96 divisors (see below), whose sum is σ = 5779154304. Its totient is φ = 983136000.

The previous prime is 2811232909. The next prime is 2811232961. The reversal of 2811232930 is 392321182.

It is a junction number, because it is equal to n+sod(n) for n = 2811232892 and 2811232901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3693750 + ... + 3694510.

It is an arithmetic number, because the mean of its divisors is an integer number (60199524).

Almost surely, 22811232930 is an apocalyptic number.

2811232930 is an abundant number, since it is smaller than the sum of its proper divisors (2967921374).

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

2811232930 is a wasteful number, since it uses less digits than its factorization.

2811232930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 2811232930 is about 53021.0611926996. The cubic root of 2811232930 is about 1411.3420366328.

The spelling of 2811232930 in words is "two billion, eight hundred eleven million, two hundred thirty-two thousand, nine hundred thirty".

Divisors: 1 2 5 10 11 22 43 55 71 86 110 121 142 215 242 355 430 473 605 710 761 781 946 1210 1522 1562 2365 3053 3805 3905 4730 5203 6106 7610 7810 8371 8591 10406 15265 16742 17182 26015 30530 32723 33583 41855 42955 52030 54031 65446 67166 83710 85910 92081 108062 163615 167915 184162 270155 327230 335830 359953 369413 460405 540310 594341 719906 738826 920810 1188682 1799765 1847065 2323333 2971705 3599530 3694130 3959483 4646666 5943410 6537751 7918966 11616665 13075502 19797415 23233330 25556663 32688755 39594830 51113326 65377510 127783315 255566630 281123293 562246586 1405616465 2811232930