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1330122520 = 23571468353
BaseRepresentation
bin100111101001000…
…0000111100011000
310102200212020002001
41033102000330120
510211002410040
6335553050344
744650566136
oct11722007430
93380766061
101330122520
11622901811
123115569b4
1318275395c
14c8922756
157bb9059a
hex4f480f18

1330122520 has 32 divisors (see below), whose sum is σ = 3034933920. Its totient is φ = 524554240.

The previous prime is 1330122511. The next prime is 1330122523. The reversal of 1330122520 is 252210331.

It is a super-2 number, since 2×13301225202 = 3538451836422300800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330122523) 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 7 ways as a sum of consecutive naturals, for example, 231337 + ... + 237016.

It is an arithmetic number, because the mean of its divisors is an integer number (94841685).

Almost surely, 21330122520 is an apocalyptic number.

1330122520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330122520 is an abundant number, since it is smaller than the sum of its proper divisors (1704811400).

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

1330122520 is a wasteful number, since it uses less digits than its factorization.

1330122520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468435 (or 468431 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1330122520 is about 36470.8447941640. The cubic root of 1330122520 is about 1099.7582168317.

Adding to 1330122520 its reverse (252210331), we get a palindrome (1582332851).

The spelling of 1330122520 in words is "one billion, three hundred thirty million, one hundred twenty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 468353 936706 1873412 2341765 3746824 4683530 9367060 18734120 33253063 66506126 133012252 166265315 266024504 332530630 665061260 1330122520