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2020011111020 = 225754372653789
BaseRepresentation
bin11101011001010010000…
…010110111001001101100
321011010000001021121200002
4131121102002313021230
5231043440321023040
64143551424323432
7265640521066430
oct35312202671154
97133001247602
102020011111020
11709755679771
122875a9773578
1311864232c476
146daaa4289c0
1537829be0a15
hex1d6520b726c

2020011111020 has 48 divisors (see below), whose sum is σ = 4848920166720. Its totient is φ = 692447595264.

The previous prime is 2020011110993. The next prime is 2020011111029. The reversal of 2020011111020 is 201111100202.

It is a junction number, because it is equal to n+sod(n) for n = 2020011110992 and 2020011111010.

It is not an unprimeable number, because it can be changed into a prime (2020011111029) 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, 565715 + ... + 2088074.

It is an arithmetic number, because the mean of its divisors is an integer number (101019170140).

Almost surely, 22020011111020 is an apocalyptic number.

2020011111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020011111020 is an abundant number, since it is smaller than the sum of its proper divisors (2828909055700).

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

2020011111020 is a wasteful number, since it uses less digits than its factorization.

2020011111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659242 (or 2659240 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2020011111020 its reverse (201111100202), we get a palindrome (2221122211222).

The spelling of 2020011111020 in words is "two trillion, twenty billion, eleven million, one hundred eleven thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 5437 10874 21748 27185 38059 54370 76118 108740 152236 190295 380590 761180 2653789 5307578 10615156 13268945 18576523 26537890 37153046 53075780 74306092 92882615 185765230 371530460 14428650793 28857301586 57714603172 72143253965 101000555551 144286507930 202001111102 288573015860 404002222204 505002777755 1010005555510 2020011111020