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20693038103 = 113947193373
BaseRepresentation
bin10011010001011001…
…101011010000010111
31222102010121020210122
4103101121223100113
5314334404204403
613301203342155
71331535631103
oct232131532027
958363536718
1020693038103
118859753891
12401608195b
131c4a14a25a
14100436a903
15811a15838
hex4d166b417

20693038103 has 8 divisors (see below), whose sum is σ = 20898314928. Its totient is φ = 20488150144.

The previous prime is 20693038099. The next prime is 20693038117. The reversal of 20693038103 is 30183039602.

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 20693038103 - 22 = 20693038099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20693038123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10325 + ... + 203697.

It is an arithmetic number, because the mean of its divisors is an integer number (2612289366).

Almost surely, 220693038103 is an apocalyptic number.

20693038103 is a deficient number, since it is larger than the sum of its proper divisors (205276825).

20693038103 is a wasteful number, since it uses less digits than its factorization.

20693038103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194433.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 20693038103 in words is "twenty billion, six hundred ninety-three million, thirty-eight thousand, one hundred three".

Divisors: 1 113 947 107011 193373 21851149 183124231 20693038103