Base | Representation |
---|---|
bin | 100100010111110… |
… | …1101000100101101 |
3 | 10011001112001011020 |
4 | 1020233231010231 |
5 | 4444414334231 |
6 | 321034444353 |
7 | 42146531553 |
oct | 11057550455 |
9 | 3131461136 |
10 | 1220464941 |
11 | 576a14413 |
12 | 2a08936b9 |
13 | 165b0b407 |
14 | b8139bd3 |
15 | 7222e396 |
hex | 48bed12d |
1220464941 has 4 divisors (see below), whose sum is σ = 1627286592. Its totient is φ = 813643292.
The previous prime is 1220464879. The next prime is 1220464967. The reversal of 1220464941 is 1494640221.
1220464941 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 1220464941 - 26 = 1220464877 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1220464541) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203410821 + ... + 203410826.
It is an arithmetic number, because the mean of its divisors is an integer number (406821648).
Almost surely, 21220464941 is an apocalyptic number.
It is an amenable number.
1220464941 is a deficient number, since it is larger than the sum of its proper divisors (406821651).
1220464941 is an equidigital number, since it uses as much as digits as its factorization.
1220464941 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 406821650.
The product of its (nonzero) digits is 13824, while the sum is 33.
The square root of 1220464941 is about 34935.1533702086. The cubic root of 1220464941 is about 1068.6654515107.
The spelling of 1220464941 in words is "one billion, two hundred twenty million, four hundred sixty-four thousand, nine hundred forty-one".
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