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1230211433 = 11199561997
BaseRepresentation
bin100100101010011…
…1000100101101001
310011201212012211102
41021110320211221
510004413231213
6322023411145
742325424153
oct11124704551
93151765742
101230211433
11581471070
122a3bb3ab5
13167b41779
14b9555ad3
1573007158
hex49538969

1230211433 has 8 divisors (see below), whose sum is σ = 1348795200. Its totient is φ = 1112752080.

The previous prime is 1230211429. The next prime is 1230211439. The reversal of 1230211433 is 3341120321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1230211433 - 22 = 1230211429 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230211439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278810 + ... + 283187.

It is an arithmetic number, because the mean of its divisors is an integer number (168599400).

Almost surely, 21230211433 is an apocalyptic number.

It is an amenable number.

1230211433 is a deficient number, since it is larger than the sum of its proper divisors (118583767).

1230211433 is a wasteful number, since it uses less digits than its factorization.

1230211433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562207.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1230211433 is about 35074.3700299806. The cubic root of 1230211433 is about 1071.5026585967.

Adding to 1230211433 its reverse (3341120321), we get a palindrome (4571331754).

The spelling of 1230211433 in words is "one billion, two hundred thirty million, two hundred eleven thousand, four hundred thirty-three".

Divisors: 1 11 199 2189 561997 6181967 111837403 1230211433