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1312020230210 = 25131202023021
BaseRepresentation
bin10011000101111010011…
…111111111000001000010
311122102112221112102012122
4103011322133333001002
5132444004134331320
62442422254524242
7163535040643334
oct23057237770102
94572487472178
101312020230210
11466474241048
12192340b06682
13969524c30b1
1447705b51454
15241de33ed25
hex1317a7ff042

1312020230210 has 8 divisors (see below), whose sum is σ = 2361636414396. Its totient is φ = 524808092080.

The previous prime is 1312020230207. The next prime is 1312020230219. The reversal of 1312020230210 is 120320202131.

It can be written as a sum of positive squares in 2 ways, for example, as 1311636501289 + 383728921 = 1145267^2 + 19589^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1312020230219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65601011501 + ... + 65601011520.

Almost surely, 21312020230210 is an apocalyptic number.

1312020230210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312020230210 is a deficient number, since it is larger than the sum of its proper divisors (1049616184186).

1312020230210 is a wasteful number, since it uses less digits than its factorization.

1312020230210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131202023028.

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

Adding to 1312020230210 its reverse (120320202131), we get a palindrome (1432340432341).

The spelling of 1312020230210 in words is "one trillion, three hundred twelve billion, twenty million, two hundred thirty thousand, two hundred ten".

Divisors: 1 2 5 10 131202023021 262404046042 656010115105 1312020230210