Search a number
-
+
1311202314 = 23272844573
BaseRepresentation
bin100111000100111…
…0101110000001010
310101101020222102200
41032021311300022
510141131433224
6334035341030
744331015162
oct11611656012
93341228380
101311202314
11613159784
12307151776
1317b85ab76
14c61d95a2
157a1a45c9
hex4e275c0a

1311202314 has 12 divisors (see below), whose sum is σ = 2840938386. Its totient is φ = 437067432.

The previous prime is 1311202297. The next prime is 1311202339. The reversal of 1311202314 is 4132021131.

It can be written as a sum of positive squares in only one way, i.e., 1141291089 + 169911225 = 33783^2 + 13035^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 72844573 = 1311202314 / (1 + 3 + 1 + 1 + 2 + 0 + 2 + 3 + 1 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36422269 + ... + 36422304.

Almost surely, 21311202314 is an apocalyptic number.

1311202314 is an abundant number, since it is smaller than the sum of its proper divisors (1529736072).

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

1311202314 is a wasteful number, since it uses less digits than its factorization.

1311202314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72844581 (or 72844578 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1311202314 is about 36210.5276680691. The cubic root of 1311202314 is about 1094.5188253062.

Adding to 1311202314 its reverse (4132021131), we get a palindrome (5443223445).

The spelling of 1311202314 in words is "one billion, three hundred eleven million, two hundred two thousand, three hundred fourteen".

Divisors: 1 2 3 6 9 18 72844573 145689146 218533719 437067438 655601157 1311202314