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20020030002 = 2327158889127
BaseRepresentation
bin10010101001010010…
…010110101000110010
31220200020012220020200
4102221102112220302
5312000111430002
613110322420030
71306054306260
oct225122265062
956606186220
1020020030002
11854386a945
123a68801616
131b7089b8cb
14d7cc1b430
157c28c5b1c
hex4a9496a32

20020030002 has 24 divisors (see below), whose sum is σ = 49573407936. Its totient is φ = 5720008536.

The previous prime is 20020029983. The next prime is 20020030021. The reversal of 20020030002 is 20003002002.

It is an interprime number because it is at equal distance from previous prime (20020029983) and next prime (20020030021).

It is a super-3 number, since 3×200200300023 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79444438 + ... + 79444689.

It is an arithmetic number, because the mean of its divisors is an integer number (2065558664).

Almost surely, 220020030002 is an apocalyptic number.

20020030002 is an abundant number, since it is smaller than the sum of its proper divisors (29553377934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020030002 is a wasteful number, since it uses less digits than its factorization.

20020030002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158889142 (or 158889139 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

Adding to 20020030002 its reverse (20003002002), we get a palindrome (40023032004).

The spelling of 20020030002 in words is "twenty billion, twenty million, thirty thousand, two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 158889127 317778254 476667381 953334762 1112223889 1430002143 2224447778 2860004286 3336671667 6673343334 10010015001 20020030002