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1313300228 = 221289254713
BaseRepresentation
bin100111001000111…
…0101111100000100
310101112012120020012
41032101311330010
510142201101403
6334152325352
744354603432
oct11621657404
93345176205
101313300228
11614361999
123079a3858
1317c113a36
14c65c3d52
157a46aed8
hex4e475f04

1313300228 has 12 divisors (see below), whose sum is σ = 2300067420. Its totient is φ = 656138112.

The previous prime is 1313300203. The next prime is 1313300239. The reversal of 1313300228 is 8220033131.

It can be written as a sum of positive squares in 2 ways, for example, as 1074659524 + 238640704 = 32782^2 + 15448^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122201 + ... + 132512.

It is an arithmetic number, because the mean of its divisors is an integer number (191672285).

Almost surely, 21313300228 is an apocalyptic number.

It is an amenable number.

1313300228 is a deficient number, since it is larger than the sum of its proper divisors (986767192).

1313300228 is a wasteful number, since it uses less digits than its factorization.

1313300228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256006 (or 256004 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1313300228 is about 36239.4843782303. The cubic root of 1313300228 is about 1095.1022549296.

Adding to 1313300228 its reverse (8220033131), we get a palindrome (9533333359).

The spelling of 1313300228 in words is "one billion, three hundred thirteen million, three hundred thousand, two hundred twenty-eight".

Divisors: 1 2 4 1289 2578 5156 254713 509426 1018852 328325057 656650114 1313300228