Search a number
-
+
1311103214 = 237731631489
BaseRepresentation
bin100111000100101…
…1101100011101110
310101101001221111022
41032021131203232
510141120300324
6334033254142
744330123231
oct11611354356
93341057438
101311103214
116130a1283
12307104352
1317b824a25
14c61b1418
157a18505e
hex4e25d8ee

1311103214 has 32 divisors (see below), whose sum is σ = 2061420960. Its totient is φ = 624817152.

The previous prime is 1311103187. The next prime is 1311103217. The reversal of 1311103214 is 4123011131.

It is a super-2 number, since 2×13111032142 = 3437983275522259592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311103192 and 1311103201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311103217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 879782 + ... + 881270.

It is an arithmetic number, because the mean of its divisors is an integer number (64419405).

Almost surely, 21311103214 is an apocalyptic number.

1311103214 is a deficient number, since it is larger than the sum of its proper divisors (750317746).

1311103214 is a wasteful number, since it uses less digits than its factorization.

1311103214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1311103214 is about 36209.1592556359. The cubic root of 1311103214 is about 1094.4912502206.

Adding to 1311103214 its reverse (4123011131), we get a palindrome (5434114345).

The spelling of 1311103214 in words is "one billion, three hundred eleven million, one hundred three thousand, two hundred fourteen".

Divisors: 1 2 37 73 74 146 163 326 1489 2701 2978 5402 6031 11899 12062 23798 55093 108697 110186 217394 242707 440263 485414 880526 4021789 8043578 8980159 17717611 17960318 35435222 655551607 1311103214