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1303132220 = 225135012047
BaseRepresentation
bin100110110101100…
…0011100000111100
310100211001222100022
41031223003200330
510132100212340
6333150351312
744202304205
oct11553034074
93324058308
101303132220
11609647585
123044bb538
13179c93870
14c50d85ac
157960d3b5
hex4dac383c

1303132220 has 24 divisors (see below), whose sum is σ = 2947084224. Its totient is φ = 481156416.

The previous prime is 1303132219. The next prime is 1303132231. The reversal of 1303132220 is 222313031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2505764 + ... + 2506283.

It is an arithmetic number, because the mean of its divisors is an integer number (122795176).

Almost surely, 21303132220 is an apocalyptic number.

1303132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303132220 is an abundant number, since it is smaller than the sum of its proper divisors (1643952004).

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

1303132220 is a wasteful number, since it uses less digits than its factorization.

1303132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012069 (or 5012067 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1303132220 is about 36098.9226986069. The cubic root of 1303132220 is about 1092.2687140324.

Adding to 1303132220 its reverse (222313031), we get a palindrome (1525445251).

The spelling of 1303132220 in words is "one billion, three hundred three million, one hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 5012047 10024094 20048188 25060235 50120470 65156611 100240940 130313222 260626444 325783055 651566110 1303132220