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12342421210 = 257838923869
BaseRepresentation
bin10110111111010101…
…00110011011011010
31011212011102221221111
423133222212123122
5200234124434320
65400420530534
7614566564210
oct133752463332
934764387844
1012342421210
115263a7a809
122485550a4a
131219096222
148512b4cb0
154c385da5a
hex2dfaa66da

12342421210 has 64 divisors (see below), whose sum is σ = 25985836800. Its totient is φ = 4133555712.

The previous prime is 12342421181. The next prime is 12342421219. The reversal of 12342421210 is 1212424321.

It is a super-2 number, since 2×123424212102 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12342421219) 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, 505156 + ... + 529024.

It is an arithmetic number, because the mean of its divisors is an integer number (406028700).

Almost surely, 212342421210 is an apocalyptic number.

12342421210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12342421210 is an abundant number, since it is smaller than the sum of its proper divisors (13643415590).

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

12342421210 is a wasteful number, since it uses less digits than its factorization.

12342421210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24055.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12342421210 its reverse (1212424321), we get a palindrome (13554845531).

The spelling of 12342421210 in words is "twelve billion, three hundred forty-two million, four hundred twenty-one thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 70 83 89 166 178 415 445 581 623 830 890 1162 1246 2905 3115 5810 6230 7387 14774 23869 36935 47738 51709 73870 103418 119345 167083 238690 258545 334166 517090 835415 1670830 1981127 2124341 3962254 4248682 9905635 10621705 13867889 14870387 19811270 21243410 27735778 29740774 69339445 74351935 138678890 148703870 176320303 352640606 881601515 1234242121 1763203030 2468484242 6171210605 12342421210