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13120030982 = 26560015491
BaseRepresentation
bin11000011100000001…
…11100100100000110
31020212100122122000102
430032000330210012
5203332211442412
610005515444102
7643061265122
oct141600744406
936770578012
1013120030982
115622a08513
122661a56632
131311209a56
148c6692582
1551bc618c2
hex30e03c906

13120030982 has 4 divisors (see below), whose sum is σ = 19680046476. Its totient is φ = 6560015490.

The previous prime is 13120030981. The next prime is 13120031003. The reversal of 13120030982 is 28903002131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28903002131 = 67814262351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120030981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280007744 + ... + 3280007747.

It is an arithmetic number, because the mean of its divisors is an integer number (4920011619).

Almost surely, 213120030982 is an apocalyptic number.

13120030982 is a deficient number, since it is larger than the sum of its proper divisors (6560015494).

13120030982 is an equidigital number, since it uses as much as digits as its factorization.

13120030982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560015493.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 13120030982 in words is "thirteen billion, one hundred twenty million, thirty thousand, nine hundred eighty-two".

Divisors: 1 2 6560015491 13120030982