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20030013013 = 234192078449
BaseRepresentation
bin10010101001111000…
…011011111001010101
31220200221000002100211
4102221320123321111
5312010140404023
613111320405421
71306235205253
oct225170337125
956627002324
1020030013013
11854946926a
123a70016871
131b7298580a
14d802995d3
157c36e8a0d
hex4a9e1be55

20030013013 has 8 divisors (see below), whose sum is σ = 20950776000. Its totient is φ = 19113407808.

The previous prime is 20030012917. The next prime is 20030013041. The reversal of 20030013013 is 31031003002.

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 20030013013 - 213 = 20030004821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20030012984 and 20030013002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030013613) 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 7 ways as a sum of consecutive naturals, for example, 1029588 + ... + 1048861.

It is an arithmetic number, because the mean of its divisors is an integer number (2618847000).

Almost surely, 220030013013 is an apocalyptic number.

20030013013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20030013013 is a deficient number, since it is larger than the sum of its proper divisors (920762987).

20030013013 is a wasteful number, since it uses less digits than its factorization.

20030013013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078891.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 20030013013 its reverse (31031003002), we get a palindrome (51061016015).

The spelling of 20030013013 in words is "twenty billion, thirty million, thirteen thousand, thirteen".

Divisors: 1 23 419 9637 2078449 47804327 870870131 20030013013