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2020010020 = 225714428643
BaseRepresentation
bin111100001100110…
…1110100000100100
312012210000010210221
41320121232200210
513114110310040
6532235454124
7101025542020
oct17031564044
95183003727
102020010020
11947274476
124845b7344
13262662202
141523c7380
15bc51674a
hex7866e824

2020010020 has 24 divisors (see below), whose sum is σ = 4848024384. Its totient is φ = 692574816.

The previous prime is 2020010009. The next prime is 2020010033. The reversal of 2020010020 is 200100202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 2020009985 and 2020010012.

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, 7214182 + ... + 7214461.

It is an arithmetic number, because the mean of its divisors is an integer number (202001016).

Almost surely, 22020010020 is an apocalyptic number.

2020010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020010020 is an abundant number, since it is smaller than the sum of its proper divisors (2828014364).

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

2020010020 is a wasteful number, since it uses less digits than its factorization.

2020010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14428659 (or 14428657 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 2020010020 is about 44944.5215793872. The cubic root of 2020010020 is about 1264.1089550167.

Adding to 2020010020 its reverse (200100202), we get a palindrome (2220110222).

The spelling of 2020010020 in words is "two billion, twenty million, ten thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 14428643 28857286 57714572 72143215 101000501 144286430 202001002 288572860 404002004 505002505 1010005010 2020010020