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20020010012 = 2271367401479
BaseRepresentation
bin10010101001010010…
…010001110000011100
31220200020011212211022
4102221102101300130
5312000110310022
613110322143312
71306054164062
oct225122216034
956606155738
1020020010012
118543856922
123a687b1b38
131b70892792
14d7cc14032
157c28bec42
hex4a9491c1c

20020010012 has 48 divisors (see below), whose sum is σ = 35788677120. Its totient is φ = 9797088000.

The previous prime is 20020010009. The next prime is 20020010039. The reversal of 20020010012 is 21001002002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41795189 + ... + 41795667.

It is an arithmetic number, because the mean of its divisors is an integer number (745597440).

Almost surely, 220020010012 is an apocalyptic number.

It is an amenable number.

20020010012 is a deficient number, since it is larger than the sum of its proper divisors (15768667108).

20020010012 is a wasteful number, since it uses less digits than its factorization.

20020010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322 (or 1320 counting only the distinct ones).

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

Adding to 20020010012 its reverse (21001002002), we get a palindrome (41021012014).

The spelling of 20020010012 in words is "twenty billion, twenty million, ten thousand, twelve".

Divisors: 1 2 4 71 142 284 367 401 479 734 802 958 1468 1604 1916 26057 28471 34009 52114 56942 68018 104228 113884 136036 147167 175793 192079 294334 351586 384158 588668 703172 768316 10448857 12481303 13637609 20897714 24962606 27275218 41795428 49925212 54550436 70492993 140985986 281971972 5005002503 10010005006 20020010012