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20020010202 = 2322724140829
BaseRepresentation
bin10010101001010010…
…010001110011011010
31220200020011220002100
4102221102101303122
5312000110311302
613110322144230
71306054164453
oct225122216332
956606156070
1020020010202
118543856a85
123a687b2076
131b708928aa
14d7cc1412a
157c28bed1c
hex4a9491cda

20020010202 has 24 divisors (see below), whose sum is σ = 43379343540. Its totient is φ = 6672928320.

The previous prime is 20020010189. The next prime is 20020010207. The reversal of 20020010202 is 20201002002.

It can be written as a sum of positive squares in 2 ways, for example, as 10989119241 + 9030890961 = 104829^2 + 95031^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20020010207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469924 + ... + 510752.

Almost surely, 220020010202 is an apocalyptic number.

20020010202 is an abundant number, since it is smaller than the sum of its proper divisors (23359333338).

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

20020010202 is a wasteful number, since it uses less digits than its factorization.

20020010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68078 (or 68075 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20020010202 its reverse (20201002002), we get a palindrome (40221012204).

The spelling of 20020010202 in words is "twenty billion, twenty million, ten thousand, two hundred two".

Divisors: 1 2 3 6 9 18 27241 40829 54482 81658 81723 122487 163446 244974 245169 367461 490338 734922 1112222789 2224445578 3336668367 6673336734 10010005101 20020010202