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12345305210 = 2577314271693
BaseRepresentation
bin10110111111101011…
…00110100001111010
31011212100212111001022
423133311212201322
5200240344231320
65401002422442
7614633235320
oct133765464172
934770774038
1012345305210
11526566a587
122486501a22
131219865b34
14851825d10
154c3c2d325
hex2dfd6687a

12345305210 has 64 divisors (see below), whose sum is σ = 25777204992. Its totient is φ = 4169304576.

The previous prime is 12345305207. The next prime is 12345305221. The reversal of 12345305210 is 1250354321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12345305210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7291124 + ... + 7292816.

It is an arithmetic number, because the mean of its divisors is an integer number (402768828).

Almost surely, 212345305210 is an apocalyptic number.

12345305210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12345305210 is an abundant number, since it is smaller than the sum of its proper divisors (13431899782).

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

12345305210 is a wasteful number, since it uses less digits than its factorization.

12345305210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 12345305210 its reverse (1250354321), we get a palindrome (13595659531).

The spelling of 12345305210 in words is "twelve billion, three hundred forty-five million, three hundred five thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 70 73 146 365 511 730 1022 1427 1693 2555 2854 3386 5110 7135 8465 9989 11851 14270 16930 19978 23702 49945 59255 99890 104171 118510 123589 208342 247178 520855 617945 729197 865123 1041710 1235890 1458394 1730246 2415911 3645985 4325615 4831822 7291970 8651230 12079555 16911377 24159110 33822754 84556885 169113770 176361503 352723006 881807515 1234530521 1763615030 2469061042 6172652605 12345305210