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200020011020 = 22531401804521
BaseRepresentation
bin1011101001001000011…
…1110010100000001100
3201010021201221100110022
42322102013302200030
511234120110323040
6231515443001312
720310453020114
oct2722207624014
9633251840408
10200020011020
1177912099835
1232922369238
1315b2850760b
149976a10044
15530a0c86b5
hex2e921f280c

200020011020 has 48 divisors (see below), whose sum is σ = 434673582336. Its totient is φ = 77233920000.

The previous prime is 200020011007. The next prime is 200020011029. The reversal of 200020011020 is 20110020002.

It is a junction number, because it is equal to n+sod(n) for n = 200020010989 and 200020011007.

It is not an unprimeable number, because it can be changed into a prime (200020011029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153641 + ... + 650880.

It is an arithmetic number, because the mean of its divisors is an integer number (9055699632).

Almost surely, 2200020011020 is an apocalyptic number.

200020011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200020011020 is an abundant number, since it is smaller than the sum of its proper divisors (234653571316).

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

200020011020 is a wasteful number, since it uses less digits than its factorization.

200020011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804962 (or 804960 counting only the distinct ones).

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

Adding to 200020011020 its reverse (20110020002), we get a palindrome (220130031022).

The spelling of 200020011020 in words is "two hundred billion, twenty million, eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 401 620 802 1604 2005 4010 8020 12431 24862 49724 62155 124310 248620 804521 1609042 3218084 4022605 8045210 16090420 24940151 49880302 99760604 124700755 249401510 322612921 498803020 645225842 1290451684 1613064605 3226129210 6452258420 10001000551 20002001102 40004002204 50005002755 100010005510 200020011020