Search a number
-
+
422868807 = 321929269317
BaseRepresentation
bin11001001101000…
…111011101000111
31002110200221221200
4121031013131013
51331223300212
6105543313543
713323216444
oct3115073507
91073627850
10422868807
111a7775659
12b974b8b3
13697ba73a
14402389cb
15271ce6dc
hex19347747

422868807 has 48 divisors (see below), whose sum is σ = 669708000. Its totient is φ = 256096512.

The previous prime is 422868773. The next prime is 422868811. The reversal of 422868807 is 708868224.

It is a happy number.

It is not a de Polignac number, because 422868807 - 27 = 422868679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422868107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1333813 + ... + 1334129.

It is an arithmetic number, because the mean of its divisors is an integer number (13952250).

Almost surely, 2422868807 is an apocalyptic number.

422868807 is a deficient number, since it is larger than the sum of its proper divisors (246839193).

422868807 is a wasteful number, since it uses less digits than its factorization.

422868807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 422868807 is about 20563.7741428951. The cubic root of 422868807 is about 750.5884608310.

The spelling of 422868807 in words is "four hundred twenty-two million, eight hundred sixty-eight thousand, eight hundred seven".

Divisors: 1 3 9 19 29 57 87 171 261 269 317 551 807 951 1653 2421 2853 4959 5111 6023 7801 9193 15333 18069 23403 27579 45999 54207 70209 82737 85273 148219 174667 255819 444657 524001 767457 1333971 1572003 1620187 2472917 4860561 7418751 14581683 22256253 46985423 140956269 422868807