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20000006 = 213769231
BaseRepresentation
bin100110001001…
…0110100000110
31101122002211222
41030102310012
520110000011
61552400342
7331666025
oct114226406
941562758
1020000006
1110320334
1268460b2
1341b3430
1429288bc
151b50ddb
hex1312d06

20000006 has 8 divisors (see below), whose sum is σ = 32307744. Its totient is φ = 9230760.

The previous prime is 20000003. The next prime is 20000023. The reversal of 20000006 is 60000002.

It is a sphenic number, since it is the product of 3 distinct primes.

20000006 is a modest number, since divided by 6 gives 2 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 19999948 and 20000002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000003) 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, 384590 + ... + 384641.

It is an arithmetic number, because the mean of its divisors is an integer number (4038468).

Almost surely, 220000006 is an apocalyptic number.

20000006 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20000006 is a deficient number, since it is larger than the sum of its proper divisors (12307738).

20000006 is a wasteful number, since it uses less digits than its factorization.

20000006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769246.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 20000006 is about 4472.1366258199. The cubic root of 20000006 is about 271.4417888037.

Adding to 20000006 its reverse (60000002), we get a palindrome (80000008).

The spelling of 20000006 in words is "twenty million, six", and thus it is an aban number and an uban number.

Divisors: 1 2 13 26 769231 1538462 10000003 20000006