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13030000331 = 26417493243
BaseRepresentation
bin11000010001010011…
…00000011011001011
31020122002020121011212
430020221200123023
5203141140002311
65552542043335
7640616114105
oct141051403313
936562217155
1013030000331
115587106117
12263787954b
1312c8676b8a
148b8738575
15513dcac8b
hex308a606cb

13030000331 has 4 divisors (see below), whose sum is σ = 13030519992. Its totient is φ = 13029480672.

The previous prime is 13030000307. The next prime is 13030000337. The reversal of 13030000331 is 13300003031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13300003031 = 71900000433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13030000331 is a prime.

It is a super-2 number, since 2×130300003312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13030000337) 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, 220205 + ... + 273038.

It is an arithmetic number, because the mean of its divisors is an integer number (3257629998).

Almost surely, 213030000331 is an apocalyptic number.

13030000331 is a deficient number, since it is larger than the sum of its proper divisors (519661).

13030000331 is an equidigital number, since it uses as much as digits as its factorization.

13030000331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519660.

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 13030000331 its reverse (13300003031), we get a palindrome (26330003362).

The spelling of 13030000331 in words is "thirteen billion, thirty million, three hundred thirty-one", and thus it is an aban number.

Divisors: 1 26417 493243 13030000331