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2020000100 = 225242147981
BaseRepresentation
bin111100001100110…
…1100000101100100
312012202222122012112
41320121230011210
513114110000400
6532235340152
7101025501056
oct17031540544
95182878175
102020000100
11947267a78
124845b1658
1326265a841
141523c38d6
15bc513835
hex7866c164

2020000100 has 36 divisors (see below), whose sum is σ = 4393903668. Its totient is φ = 806064000.

The previous prime is 2020000097. The next prime is 2020000111. The reversal of 2020000100 is 10000202.

It can be written as a sum of positive squares in 6 ways, for example, as 697805056 + 1322195044 = 26416^2 + 36362^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18110 + ... + 66090.

Almost surely, 22020000100 is an apocalyptic number.

2020000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020000100 is an abundant number, since it is smaller than the sum of its proper divisors (2373903568).

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

2020000100 is a wasteful number, since it uses less digits than its factorization.

2020000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48416 (or 48409 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 2020000100 is about 44944.4112209738. The cubic root of 2020000100 is about 1264.1068857231.

Adding to 2020000100 its reverse (10000202), we get a palindrome (2030000302).

The spelling of 2020000100 in words is "two billion, twenty million, one hundred", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 25 50 100 421 842 1684 2105 4210 8420 10525 21050 42100 47981 95962 191924 239905 479810 959620 1199525 2399050 4798100 20200001 40400002 80800004 101000005 202000010 404000020 505000025 1010000050 2020000100