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641424146 = 21122991397
BaseRepresentation
bin100110001110110…
…101101100010010
31122200221201111212
4212032311230102
52303201033041
6143351540122
721616005146
oct4616655422
91580851455
10641424146
112aa081500
1215a98a642
13a2b7071c
146128b226
153b4a18eb
hex263b5b12

641424146 has 24 divisors (see below), whose sum is σ = 1094034060. Its totient is φ = 281499680.

The previous prime is 641424101. The next prime is 641424149.

641424146 is nontrivially palindromic in base 10.

641424146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 639533521 + 1890625 = 25289^2 + 1375^2 .

It is a super-2 number, since 2×6414241462 = 822849870143658632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641424149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38681 + ... + 52716.

Almost surely, 2641424146 is an apocalyptic number.

641424146 is a deficient number, since it is larger than the sum of its proper divisors (452609914).

641424146 is a wasteful number, since it uses less digits than its factorization.

641424146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91450 (or 91439 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 641424146 is about 25326.3527970373. The cubic root of 641424146 is about 862.4126169541.

The spelling of 641424146 in words is "six hundred forty-one million, four hundred twenty-four thousand, one hundred forty-six".