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12320213210 = 251232021321
BaseRepresentation
bin10110111100101011…
…11000100011011010
31011210121122200021222
423132111320203122
5200212433310320
65354304532042
7614210040644
oct133625704332
934717580258
1012320213210
115252491598
12247a021022
1312145bbab6
1484c373894
154c1923825
hex2de5788da

12320213210 has 8 divisors (see below), whose sum is σ = 22176383796. Its totient is φ = 4928085280.

The previous prime is 12320213177. The next prime is 12320213221. The reversal of 12320213210 is 1231202321.

It can be written as a sum of positive squares in 2 ways, for example, as 9878173321 + 2442039889 = 99389^2 + 49417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616010651 + ... + 616010670.

Almost surely, 212320213210 is an apocalyptic number.

12320213210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320213210 is a deficient number, since it is larger than the sum of its proper divisors (9856170586).

12320213210 is a wasteful number, since it uses less digits than its factorization.

12320213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232021328.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12320213210 its reverse (1231202321), we get a palindrome (13551415531).

The spelling of 12320213210 in words is "twelve billion, three hundred twenty million, two hundred thirteen thousand, two hundred ten".

Divisors: 1 2 5 10 1232021321 2464042642 6160106605 12320213210