Base | Representation |
---|---|
bin | 1000010111010011… |
… | …1011001000100111 |
3 | 12210110211011222010 |
4 | 2011310323020213 |
5 | 14044240242211 |
6 | 1010443205303 |
7 | 106432153134 |
oct | 20564731047 |
9 | 5713734863 |
10 | 2245243431 |
11 | a52421692 |
12 | 527b16833 |
13 | 29a212a12 |
14 | 17429758b |
15 | d21a74a6 |
hex | 85d3b227 |
2245243431 has 16 divisors (see below), whose sum is σ = 3173234400. Its totient is φ = 1407234048.
The previous prime is 2245243411. The next prime is 2245243493. The reversal of 2245243431 is 1343425422.
2245243431 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a de Polignac number, because none of the positive numbers 2k-2245243431 is a prime.
It is a super-2 number, since 2×22452434312 = 10082236128897303522, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2245243411) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23685 + ... + 71073.
It is an arithmetic number, because the mean of its divisors is an integer number (198327150).
Almost surely, 22245243431 is an apocalyptic number.
2245243431 is a deficient number, since it is larger than the sum of its proper divisors (927990969).
2245243431 is a wasteful number, since it uses less digits than its factorization.
2245243431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48338.
The product of its digits is 23040, while the sum is 30.
The square root of 2245243431 is about 47383.9997361979. Note that the first 3 decimals coincide. The cubic root of 2245243431 is about 1309.4466577029.
Adding to 2245243431 its reverse (1343425422), we get a palindrome (3588668853).
The spelling of 2245243431 in words is "two billion, two hundred forty-five million, two hundred forty-three thousand, four hundred thirty-one".
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