| Base | Representation |
|---|---|
| bin | 1011111011000… |
| … | …10111100100000 |
| 3 | 20222012112122110 |
| 4 | 11331202330200 |
| 5 | 201101120000 |
| 6 | 13531435320 |
| 7 | 2323104333 |
| oct | 575427440 |
| 9 | 228175573 |
| 10 | 100020000 |
| 11 | 51505563 |
| 12 | 295b5b40 |
| 13 | 1794c942 |
| 14 | d3d861a |
| 15 | 8baa850 |
| hex | 5f62f20 |
100020000 has 120 divisors (see below), whose sum is σ = 328282416. Its totient is φ = 26656000.
The previous prime is 100019977. The next prime is 100020023. The reversal of 100020000 is 20001.
It is a Cunningham number, because it is equal to 100012-1.
It is an interprime number because it is at equal distance from previous prime (100019977) and next prime (100020023).
It is a tau number, because it is divible by the number of its divisors (120).
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 19 ways as a sum of consecutive naturals, for example, 59167 + ... + 60833.
Almost surely, 2100020000 is an apocalyptic number.
100020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 100020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164141208).
100020000 is an abundant number, since it is smaller than the sum of its proper divisors (228262416).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
100020000 is an equidigital number, since it uses as much as digits as its factorization.
100020000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1700 (or 1677 counting only the distinct ones).
The product of its (nonzero) digits is 2, while the sum is 3.
The square root of 100020000 is about 10000.9999500050. Note that the first 4 decimals coincide. The cubic root of 100020000 is about 464.1898252241.
Adding to 100020000 its reverse (20001), we get a palindrome (100040001).
Subtracting from 100020000 its reverse (20001), we obtain a palindrome (99999999).
The spelling of 100020000 in words is "one hundred million, twenty thousand".
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