Search a number
-
+
331442441 = 111912712487
BaseRepresentation
bin10011110000010…
…110100100001001
3212002200000112222
4103300112210021
51134322124231
652515543425
711133133331
oct2360264411
9762600488
10331442441
111600aa680
1292bbab75
13538894b5
143203a0c1
151e17027b
hex13c16909

331442441 has 16 divisors (see below), whose sum is σ = 383631360. Its totient is φ = 283182480.

The previous prime is 331442437. The next prime is 331442467. The reversal of 331442441 is 144244133.

It is a cyclic number.

It is not a de Polignac number, because 331442441 - 22 = 331442437 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331442441.

It is not an unprimeable number, because it can be changed into a prime (331442431) 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, 20300 + ... + 32786.

It is an arithmetic number, because the mean of its divisors is an integer number (23976960).

Almost surely, 2331442441 is an apocalyptic number.

It is an amenable number.

331442441 is a deficient number, since it is larger than the sum of its proper divisors (52188919).

331442441 is a wasteful number, since it uses less digits than its factorization.

331442441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12644.

The product of its digits is 4608, while the sum is 26.

The square root of 331442441 is about 18205.5607164405. The cubic root of 331442441 is about 692.0477158951.

Adding to 331442441 its reverse (144244133), we get a palindrome (475686574).

The spelling of 331442441 in words is "three hundred thirty-one million, four hundred forty-two thousand, four hundred forty-one".

Divisors: 1 11 19 127 209 1397 2413 12487 26543 137357 237253 1585849 2609783 17444339 30131131 331442441