Base | Representation |
---|---|
bin | 100011110011100… |
… | …1000110011101001 |
3 | 10002201201120121210 |
4 | 1013213020303221 |
5 | 4430032121100 |
6 | 315115023333 |
7 | 41526042300 |
oct | 10747106351 |
9 | 3081646553 |
10 | 1201442025 |
11 | 5672011a3 |
12 | 29643ab49 |
13 | 161baa954 |
14 | b57c7437 |
15 | 70722c50 |
hex | 479c8ce9 |
1201442025 has 36 divisors (see below), whose sum is σ = 2310698832. Its totient is φ = 549228960.
The previous prime is 1201442023. The next prime is 1201442041. The reversal of 1201442025 is 5202441021.
1201442025 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 1201442025 - 21 = 1201442023 is a prime.
It is a super-2 number, since 2×12014420252 = 2886925878872201250, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 1201441992 and 1201442010.
It is not an unprimeable number, because it can be changed into a prime (1201442023) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 159787 + ... + 167136.
Almost surely, 21201442025 is an apocalyptic number.
1201442025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1201442025 is a deficient number, since it is larger than the sum of its proper divisors (1109256807).
1201442025 is a wasteful number, since it uses less digits than its factorization.
1201442025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 326950 (or 326938 counting only the distinct ones).
The product of its (nonzero) digits is 640, while the sum is 21.
The square root of 1201442025 is about 34661.8237402477. The cubic root of 1201442025 is about 1063.0840599656.
Adding to 1201442025 its reverse (5202441021), we get a palindrome (6403883046).
The spelling of 1201442025 in words is "one billion, two hundred one million, four hundred forty-two thousand, twenty-five".
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