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1310804320 = 25571170361
BaseRepresentation
bin100111000100001…
…0100100101100000
310101100111202111011
41032020110211200
510141031214240
6334023030304
744324436640
oct11610244540
93340452434
101310804320
11612a07761
12306b9b394
1317b74b977
14c6134520
157a1266ea
hex4e214960

1310804320 has 48 divisors (see below), whose sum is σ = 3539174688. Its totient is φ = 449418240.

The previous prime is 1310804311. The next prime is 1310804323. The reversal of 1310804320 is 234080131.

It is a junction number, because it is equal to n+sod(n) for n = 1310804291 and 1310804300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310804323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584061 + ... + 586300.

It is an arithmetic number, because the mean of its divisors is an integer number (73732806).

Almost surely, 21310804320 is an apocalyptic number.

1310804320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310804320 is an abundant number, since it is smaller than the sum of its proper divisors (2228370368).

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

1310804320 is a wasteful number, since it uses less digits than its factorization.

1310804320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170383 (or 1170375 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1310804320 is about 36205.0316945035. The cubic root of 1310804320 is about 1094.4080730085.

Adding to 1310804320 its reverse (234080131), we get a palindrome (1544884451).

The spelling of 1310804320 in words is "one billion, three hundred ten million, eight hundred four thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 1170361 2340722 4681444 5851805 8192527 9362888 11703610 16385054 18725776 23407220 32770108 37451552 40962635 46814440 65540216 81925270 93628880 131080432 163850540 187257760 262160864 327701080 655402160 1310804320