Base | Representation |
---|---|
bin | 101010010100110… |
… | …1011011100111111 |
3 | 10122222101020122121 |
4 | 1110221223130333 |
5 | 10402033241111 |
6 | 352532023411 |
7 | 50123413600 |
oct | 12451533477 |
9 | 3588336577 |
10 | 1420212031 |
11 | 669744357 |
12 | 337761b67 |
13 | 198307564 |
14 | d6893da7 |
15 | 84a38871 |
hex | 54a6b73f |
1420212031 has 12 divisors (see below), whose sum is σ = 1652709072. Its totient is φ = 1216863648.
The previous prime is 1420211999. The next prime is 1420212037. The reversal of 1420212031 is 1302120241.
It is not a de Polignac number, because 1420212031 - 25 = 1420211999 is a prime.
It is a super-2 number, since 2×14202120312 = 4034004425994289922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1420211996 and 1420212014.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1420212037) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213451 + ... + 220003.
It is an arithmetic number, because the mean of its divisors is an integer number (137725756).
Almost surely, 21420212031 is an apocalyptic number.
1420212031 is a deficient number, since it is larger than the sum of its proper divisors (232497041).
1420212031 is an equidigital number, since it uses as much as digits as its factorization.
1420212031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10990 (or 10983 counting only the distinct ones).
The product of its (nonzero) digits is 96, while the sum is 16.
The square root of 1420212031 is about 37685.7006170776. The cubic root of 1420212031 is about 1124.0468057049.
Adding to 1420212031 its reverse (1302120241), we get a palindrome (2722332272).
The spelling of 1420212031 in words is "one billion, four hundred twenty million, two hundred twelve thousand, thirty-one".
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