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12278288130 = 2359710693947
BaseRepresentation
bin10110110111101011…
…11100111100000010
31011200200202122220020
423123311330330002
5200121220210010
65350210154310
7613160504253
oct133365747402
934620678806
1012278288130
115230856669
122467b82996
1312089ccc64
1484697cb2a
154bcde1470
hex2dbd7cf02

12278288130 has 64 divisors (see below), whose sum is σ = 29807084160. Its totient is φ = 3236603904.

The previous prime is 12278288107. The next prime is 12278288137. The reversal of 12278288130 is 3188287221.

It is not an unprimeable number, because it can be changed into a prime (12278288137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3108817 + ... + 3112763.

It is an arithmetic number, because the mean of its divisors is an integer number (465735690).

Almost surely, 212278288130 is an apocalyptic number.

12278288130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12278288130 is an abundant number, since it is smaller than the sum of its proper divisors (17528796030).

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

12278288130 is a wasteful number, since it uses less digits than its factorization.

12278288130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5123.

The product of its (nonzero) digits is 86016, while the sum is 42.

Subtracting from 12278288130 its reverse (3188287221), we obtain a palindrome (9090000909).

The spelling of 12278288130 in words is "twelve billion, two hundred seventy-eight million, two hundred eighty-eight thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 97 194 291 485 582 970 1069 1455 2138 2910 3207 3947 5345 6414 7894 10690 11841 16035 19735 23682 32070 39470 59205 103693 118410 207386 311079 382859 518465 622158 765718 1036930 1148577 1555395 1914295 2297154 3110790 3828590 4219343 5742885 8438686 11485770 12658029 21096715 25316058 42193430 63290145 126580290 409276271 818552542 1227828813 2046381355 2455657626 4092762710 6139144065 12278288130