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13121322201433 = 27769496816721
BaseRepresentation
bin1011111011110000101110…
…1111111011000101011001
31201110101102111121221011101
42332330023233323011121
53204434431440421213
643523504024231401
72522661411322435
oct276741357730531
951411374557141
1013121322201433
1141a97a3346376
12157b00030b561
13742448a81ba4
1433510abcb9c5
1517b4b0765bdd
hexbef0bbfb159

13121322201433 has 8 divisors (see below), whose sum is σ = 13170588576200. Its totient is φ = 13072069474560.

The previous prime is 13121322201419. The next prime is 13121322201439. The reversal of 13121322201433 is 33410222312131.

It can be written as a sum of positive squares in 4 ways, for example, as 3385000186569 + 9736322014864 = 1839837^2 + 3120308^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13121322201433 - 213 = 13121322193241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13121322201439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1483488 + ... + 5333233.

It is an arithmetic number, because the mean of its divisors is an integer number (1646323572025).

Almost surely, 213121322201433 is an apocalyptic number.

It is an amenable number.

13121322201433 is a deficient number, since it is larger than the sum of its proper divisors (49266374767).

13121322201433 is an equidigital number, since it uses as much as digits as its factorization.

13121322201433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6823947.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 13121322201433 its reverse (33410222312131), we get a palindrome (46531544513564).

The spelling of 13121322201433 in words is "thirteen trillion, one hundred twenty-one billion, three hundred twenty-two million, two hundred one thousand, four hundred thirty-three".

Divisors: 1 277 6949 1924873 6816721 1888231717 47369394229 13121322201433