Search a number
-
+
12307000780 = 2257915749613
BaseRepresentation
bin10110111011000110…
…11110110111001100
31011202200210102020201
423131203132313030
5200201043011110
65353113423244
7613656531514
oct133543366714
934680712221
1012307000780
115245a87928
12247570ab24
131211943ca9
1484a6d4844
154c06b3b3a
hex2dd8dedcc

12307000780 has 48 divisors (see below), whose sum is σ = 26339080320. Its totient is φ = 4829430528.

The previous prime is 12307000759. The next prime is 12307000787. The reversal of 12307000780 is 8700070321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12307000787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223254 + ... + 272866.

It is an arithmetic number, because the mean of its divisors is an integer number (548730840).

Almost surely, 212307000780 is an apocalyptic number.

12307000780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12307000780 is an abundant number, since it is smaller than the sum of its proper divisors (14032079540).

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

12307000780 is a wasteful number, since it uses less digits than its factorization.

12307000780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49858 (or 49856 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The spelling of 12307000780 in words is "twelve billion, three hundred seven million, seven hundred eighty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 79 157 158 314 316 395 628 785 790 1570 1580 3140 12403 24806 49612 49613 62015 99226 124030 198452 248060 248065 496130 992260 3919427 7789241 7838854 15578482 15677708 19597135 31156964 38946205 39194270 77892410 78388540 155784820 615350039 1230700078 2461400156 3076750195 6153500390 12307000780