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202000202020 = 22519531579479
BaseRepresentation
bin1011110000100000100…
…1100111100100100100
3201022101202000110211201
42330020021213210210
511302144022431040
6232444141212244
720410516246531
oct2741011474444
9638352013751
10202000202020
1178738936621
1233195561084
1316082837476
149ac39cdd88
1553c3d76a9a
hex2f08267924

202000202020 has 24 divisors (see below), whose sum is σ = 446526763200. Its totient is φ = 76547444832.

The previous prime is 202000201969. The next prime is 202000202023. The reversal of 202000202020 is 20202000202.

It is a super-2 number, since 2×2020002020202 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

202000202020 is a modest number, since divided by 202020 gives 202000 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 202000201988 and 202000202006.

It is not an unprimeable number, because it can be changed into a prime (202000202023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265789360 + ... + 265790119.

It is an arithmetic number, because the mean of its divisors is an integer number (18605281800).

Almost surely, 2202000202020 is an apocalyptic number.

202000202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202000202020 is an abundant number, since it is smaller than the sum of its proper divisors (244526561180).

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

202000202020 is a wasteful number, since it uses less digits than its factorization.

202000202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531579507 (or 531579505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 202000202020 its reverse (20202000202), we get a palindrome (222202202222).

The spelling of 202000202020 in words is "two hundred two billion, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 531579479 1063158958 2126317916 2657897395 5315794790 10100010101 10631589580 20200020202 40400040404 50500050505 101000101010 202000202020