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1333441220 = 22566672061
BaseRepresentation
bin100111101111010…
…1011001011000100
310102221002211110212
41033132223023010
510212330104340
6340152134552
745021030506
oct11736531304
93387084425
101333441220
11624769141
12312697458
13183346397
14c9147d76
157c0e8a65
hex4f7ab2c4

1333441220 has 12 divisors (see below), whose sum is σ = 2800226604. Its totient is φ = 533376480.

The previous prime is 1333441217. The next prime is 1333441243. The reversal of 1333441220 is 221443331.

It can be written as a sum of positive squares in 2 ways, for example, as 830246596 + 503194624 = 28814^2 + 22432^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33336011 + ... + 33336050.

It is an arithmetic number, because the mean of its divisors is an integer number (233352217).

Almost surely, 21333441220 is an apocalyptic number.

1333441220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1333441220 is an abundant number, since it is smaller than the sum of its proper divisors (1466785384).

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

1333441220 is a wasteful number, since it uses less digits than its factorization.

1333441220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66672070 (or 66672068 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1333441220 is about 36516.3144361531. The cubic root of 1333441220 is about 1100.6721016579.

Adding to 1333441220 its reverse (221443331), we get a palindrome (1554884551).

The spelling of 1333441220 in words is "one billion, three hundred thirty-three million, four hundred forty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 66672061 133344122 266688244 333360305 666720610 1333441220