Base | Representation |
---|---|
bin | 111110100101111… |
… | …0100010110101001 |
3 | 12102100222202101222 |
4 | 1331023310112221 |
5 | 13300131000100 |
6 | 544223351425 |
7 | 103021554626 |
oct | 17513642651 |
9 | 5370882358 |
10 | 2100250025 |
11 | 988599a25 |
12 | 4a7452575 |
13 | 2761778c3 |
14 | 15cd1334d |
15 | c45b6485 |
hex | 7d2f45a9 |
2100250025 has 12 divisors (see below), whose sum is σ = 2741379600. Its totient is φ = 1591768080.
The previous prime is 2100250013. The next prime is 2100250039. The reversal of 2100250025 is 5200520012.
It is not a de Polignac number, because 2100250025 - 28 = 2100249769 is a prime.
It is a super-2 number, since 2×21002500252 = 8822100335025001250, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2100249985 and 2100250012.
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, 2210315 + ... + 2211264.
It is an arithmetic number, because the mean of its divisors is an integer number (228448300).
Almost surely, 22100250025 is an apocalyptic number.
2100250025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2100250025 is a deficient number, since it is larger than the sum of its proper divisors (641129575).
2100250025 is a wasteful number, since it uses less digits than its factorization.
2100250025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4421608 (or 4421603 counting only the distinct ones).
The product of its (nonzero) digits is 200, while the sum is 17.
The square root of 2100250025 is about 45828.4848647651. The cubic root of 2100250025 is about 1280.6299846859.
Adding to 2100250025 its reverse (5200520012), we get a palindrome (7300770037).
The spelling of 2100250025 in words is "two billion, one hundred million, two hundred fifty thousand, twenty-five".
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