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13052122331 = 37352760063
BaseRepresentation
bin11000010011111011…
…11001010011011011
31020200121212111212012
430021331321103123
5203212320403311
65555052140135
7641305131533
oct141175712333
936617774765
1013052122331
115598645766
12264316764b
131300121111
148bb6564c3
15515cea78b
hex309f794db

13052122331 has 4 divisors (see below), whose sum is σ = 13404882432. Its totient is φ = 12699362232.

The previous prime is 13052122319. The next prime is 13052122337. The reversal of 13052122331 is 13322125031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13322125031 = 44330072517.

It is a cyclic number.

It is not a de Polignac number, because 13052122331 - 230 = 11978380507 is a prime.

It is a super-2 number, since 2×130521223312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13052122297 and 13052122306.

It is not an unprimeable number, because it can be changed into a prime (13052122337) 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, 176379995 + ... + 176380068.

It is an arithmetic number, because the mean of its divisors is an integer number (3351220608).

Almost surely, 213052122331 is an apocalyptic number.

13052122331 is a deficient number, since it is larger than the sum of its proper divisors (352760101).

13052122331 is an equidigital number, since it uses as much as digits as its factorization.

13052122331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352760100.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 13052122331 its reverse (13322125031), we get a palindrome (26374247362).

The spelling of 13052122331 in words is "thirteen billion, fifty-two million, one hundred twenty-two thousand, three hundred thirty-one".

Divisors: 1 37 352760063 13052122331