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13021202213 = 21481606173
BaseRepresentation
bin11000010000001111…
…11100011100100101
31020121110200121102122
430020013330130211
5203131411432323
65552025315325
7640451251445
oct141007743445
936543617378
1013021202213
115582146a48
122634935b45
1312c68b63a6
148b74c8125
1551323dec8
hex3081fc725

13021202213 has 4 divisors (see below), whose sum is σ = 13021829868. Its totient is φ = 13020574560.

The previous prime is 13021202147. The next prime is 13021202263. The reversal of 13021202213 is 31220212031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9891694849 + 3129507364 = 99457^2 + 55942^2 .

It is a cyclic number.

It is not a de Polignac number, because 13021202213 - 210 = 13021201189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13021202191 and 13021202200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021202263) 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, 281606 + ... + 324567.

It is an arithmetic number, because the mean of its divisors is an integer number (3255457467).

Almost surely, 213021202213 is an apocalyptic number.

It is an amenable number.

13021202213 is a deficient number, since it is larger than the sum of its proper divisors (627655).

13021202213 is an equidigital number, since it uses as much as digits as its factorization.

13021202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627654.

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

Adding to 13021202213 its reverse (31220212031), we get a palindrome (44241414244).

The spelling of 13021202213 in words is "thirteen billion, twenty-one million, two hundred two thousand, two hundred thirteen".

Divisors: 1 21481 606173 13021202213