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1230201333 = 32136689037
BaseRepresentation
bin100100101010011…
…0110000111110101
310011201211200222100
41021110312013311
510004412420313
6322023252313
742325352544
oct11124660765
93151750870
101230201333
11581464519
122a3baa099
13167b39caa
14b955215b
1573004173
hex495361f5

1230201333 has 6 divisors (see below), whose sum is σ = 1776957494. Its totient is φ = 820134216.

The previous prime is 1230201331. The next prime is 1230201337. The reversal of 1230201333 is 3331020321.

It can be written as a sum of positive squares in only one way, i.e., 1193149764 + 37051569 = 34542^2 + 6087^2 .

It is not a de Polignac number, because 1230201333 - 21 = 1230201331 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230201331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68344510 + ... + 68344527.

Almost surely, 21230201333 is an apocalyptic number.

It is an amenable number.

1230201333 is a deficient number, since it is larger than the sum of its proper divisors (546756161).

1230201333 is a wasteful number, since it uses less digits than its factorization.

1230201333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136689043 (or 136689040 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1230201333 is about 35074.2260499074. The cubic root of 1230201333 is about 1071.4997262535.

Adding to 1230201333 its reverse (3331020321), we get a palindrome (4561221654).

The spelling of 1230201333 in words is "one billion, two hundred thirty million, two hundred one thousand, three hundred thirty-three".

Divisors: 1 3 9 136689037 410067111 1230201333