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1311310204 = 22983333497
BaseRepresentation
bin100111000101001…
…0000000101111100
310101101110110102121
41032022100011330
510141143411304
6334041532324
744331644551
oct11612200574
93341413377
101311310204
11613222846
123071a40a4
1317b897cc9
14c6226a28
157a1c6554
hex4e29017c

1311310204 has 12 divisors (see below), whose sum is σ = 2297134224. Its totient is φ = 654986144.

The previous prime is 1311310183. The next prime is 1311310207. The reversal of 1311310204 is 4020131131.

It is a super-2 number, since 2×13113102042 = 3439068902229043232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311310207) 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, 162817 + ... + 170680.

It is an arithmetic number, because the mean of its divisors is an integer number (191427852).

Almost surely, 21311310204 is an apocalyptic number.

It is an amenable number.

1311310204 is a deficient number, since it is larger than the sum of its proper divisors (985824020).

1311310204 is a wasteful number, since it uses less digits than its factorization.

1311310204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334484 (or 334482 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1311310204 is about 36212.0173975436. The cubic root of 1311310204 is about 1094.5488446750.

Adding to 1311310204 its reverse (4020131131), we get a palindrome (5331441335).

The spelling of 1311310204 in words is "one billion, three hundred eleven million, three hundred ten thousand, two hundred four".

Divisors: 1 2 4 983 1966 3932 333497 666994 1333988 327827551 655655102 1311310204