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13452123001 = 17414728737
BaseRepresentation
bin11001000011100111…
…10001101101111001
31021201111112122121211
430201303301231321
5210022220414001
610102501403121
7654233105332
oct144163615571
937644478554
1013452123001
115783411129
1227351094a1
131364c62ac5
1491881b289
1553aeae351
hex321cf1b79

13452123001 has 24 divisors (see below), whose sum is σ = 14909579496. Its totient is φ = 12087828480.

The previous prime is 13452122989. The next prime is 13452123007. The reversal of 13452123001 is 10032125431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 515335401 + 12936787600 = 22701^2 + 113740^2 .

It is a de Polignac number, because none of the positive numbers 2k-13452123001 is a prime.

It is a super-2 number, since 2×134521230012 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13452123007) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1535305 + ... + 1544041.

It is an arithmetic number, because the mean of its divisors is an integer number (621232479).

Almost surely, 213452123001 is an apocalyptic number.

It is an amenable number.

13452123001 is a deficient number, since it is larger than the sum of its proper divisors (1457456495).

13452123001 is an equidigital number, since it uses as much as digits as its factorization.

13452123001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8889 (or 8842 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 13452123001 its reverse (10032125431), we get a palindrome (23484248432).

The spelling of 13452123001 in words is "thirteen billion, four hundred fifty-two million, one hundred twenty-three thousand, one".

Divisors: 1 17 41 47 697 799 1927 2209 8737 32759 37553 90569 148529 358217 410639 1539673 6089689 6980863 16836199 19300033 286215383 328100561 791301353 13452123001