Search a number
-
+
344230131 = 3759277829
BaseRepresentation
bin10100100001001…
…000100011110011
3212222201200222010
4110201020203303
51201110331011
654054014003
711346623250
oct2441104363
9788650863
10344230131
11167344213
1297347303
1356415b8b
1433a08427
15203491a6
hex148488f3

344230131 has 16 divisors (see below), whose sum is σ = 533433600. Its totient is φ = 193368288.

The previous prime is 344230109. The next prime is 344230147. The reversal of 344230131 is 131032443.

It is not a de Polignac number, because 344230131 - 25 = 344230099 is a prime.

It is a super-2 number, since 2×3442301312 = 236988766176554322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 344230098 and 344230107.

It is not an unprimeable number, because it can be changed into a prime (344230031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137676 + ... + 140153.

It is an arithmetic number, because the mean of its divisors is an integer number (33339600).

Almost surely, 2344230131 is an apocalyptic number.

344230131 is a deficient number, since it is larger than the sum of its proper divisors (189203469).

344230131 is a wasteful number, since it uses less digits than its factorization.

344230131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277898.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 344230131 is about 18553.4398697384. The cubic root of 344230131 is about 700.8358254064.

Adding to 344230131 its reverse (131032443), we get a palindrome (475262574).

The spelling of 344230131 in words is "three hundred forty-four million, two hundred thirty thousand, one hundred thirty-one".

Divisors: 1 3 7 21 59 177 413 1239 277829 833487 1944803 5834409 16391911 49175733 114743377 344230131