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20000000100 = 2235266666667
BaseRepresentation
bin10010101000000101…
…111100100001100100
31220121211112021101110
4102220011330201210
5311430000000400
613104325225020
71305422124123
oct225005744144
956554467343
1020000000100
11853352a103
123a61b62170
131b696a79b2
14d7a2c5aba
157c0c6ae50
hex4a817c864

20000000100 has 36 divisors (see below), whose sum is σ = 57866667824. Its totient is φ = 5333333280.

The previous prime is 20000000089. The next prime is 20000000113. The reversal of 20000000100 is 100000002.

Adding to 20000000100 its reverse (100000002), we get a palindrome (20100000102).

It is a Harshad number since it is a multiple of its sum of digits (3).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

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, 33333034 + ... + 33333633.

Almost surely, 220000000100 is an apocalyptic number.

20000000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000000100 is an abundant number, since it is smaller than the sum of its proper divisors (37866667724).

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

20000000100 is a wasteful number, since it uses less digits than its factorization.

20000000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66666684 (or 66666677 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 3.

The spelling of 20000000100 in words is "twenty billion, one hundred", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 66666667 133333334 200000001 266666668 333333335 400000002 666666670 800000004 1000000005 1333333340 1666666675 2000000010 3333333350 4000000020 5000000025 6666666700 10000000050 20000000100