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200020211020 = 22571428715793
BaseRepresentation
bin1011101001001000100…
…0100011010101001100
3201010021202022111210201
42322102020203111030
511234120133223040
6231515451143244
720310454512160
oct2722210432514
9633252274721
10200020211020
1177912216023
1232922444b24
1315b28577666
149976a62ca0
15530a117a9a
hex2e9222354c

200020211020 has 24 divisors (see below), whose sum is σ = 480048506784. Its totient is φ = 68578358016.

The previous prime is 200020210997. The next prime is 200020211077. The reversal of 200020211020 is 20112020002.

200020211020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 200020210988 and 200020211006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714357757 + ... + 714358036.

It is an arithmetic number, because the mean of its divisors is an integer number (20002021116).

Almost surely, 2200020211020 is an apocalyptic number.

200020211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200020211020 is an abundant number, since it is smaller than the sum of its proper divisors (280028295764).

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

200020211020 is a wasteful number, since it uses less digits than its factorization.

200020211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428715809 (or 1428715807 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 200020211020 its reverse (20112020002), we get a palindrome (220132231022).

The spelling of 200020211020 in words is "two hundred billion, twenty million, two hundred eleven thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1428715793 2857431586 5714863172 7143578965 10001010551 14287157930 20002021102 28574315860 40004042204 50005052755 100010105510 200020211020