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1330023204 = 223236945089
BaseRepresentation
bin100111101000110…
…1000101100100100
310102200200011211200
41033101220230210
510210441220304
6335551002500
744650003446
oct11721505444
93380604750
101330023204
11622844134
12311509430
1318271a6a3
14c88d8496
157bb70e39
hex4f468b24

1330023204 has 18 divisors (see below), whose sum is σ = 3362003190. Its totient is φ = 443341056.

The previous prime is 1330023197. The next prime is 1330023293. The reversal of 1330023204 is 4023200331.

It can be written as a sum of positive squares in only one way, i.e., 1115693604 + 214329600 = 33402^2 + 14640^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18472509 + ... + 18472580.

It is an arithmetic number, because the mean of its divisors is an integer number (186777955).

Almost surely, 21330023204 is an apocalyptic number.

It is an amenable number.

1330023204 is an abundant number, since it is smaller than the sum of its proper divisors (2031979986).

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

1330023204 is a wasteful number, since it uses less digits than its factorization.

1330023204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36945099 (or 36945094 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1330023204 is about 36469.4831880025. The cubic root of 1330023204 is about 1099.7308443393.

Adding to 1330023204 its reverse (4023200331), we get a palindrome (5353223535).

The spelling of 1330023204 in words is "one billion, three hundred thirty million, twenty-three thousand, two hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 36945089 73890178 110835267 147780356 221670534 332505801 443341068 665011602 1330023204