Search a number
-
+
344854420 = 22517242721
BaseRepresentation
bin10100100011100…
…000111110010100
3220000220102022221
4110203200332110
51201240320140
654115232124
711355133321
oct2443407624
9800812287
10344854420
11167730259
12975a8644
13565a4091
1433b2bb48
152041e14a
hex148e0f94

344854420 has 12 divisors (see below), whose sum is σ = 724194324. Its totient is φ = 137941760.

The previous prime is 344854381. The next prime is 344854421. The reversal of 344854420 is 24458443.

It can be written as a sum of positive squares in 2 ways, for example, as 132802576 + 212051844 = 11524^2 + 14562^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344854421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8621341 + ... + 8621380.

It is an arithmetic number, because the mean of its divisors is an integer number (60349527).

Almost surely, 2344854420 is an apocalyptic number.

It is an amenable number.

344854420 is an abundant number, since it is smaller than the sum of its proper divisors (379339904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

344854420 is a wasteful number, since it uses less digits than its factorization.

344854420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17242730 (or 17242728 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

The square root of 344854420 is about 18570.2563256407. The cubic root of 344854420 is about 701.2592435681.

The spelling of 344854420 in words is "three hundred forty-four million, eight hundred fifty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 17242721 34485442 68970884 86213605 172427210 344854420