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13232030021 = 73371042631
BaseRepresentation
bin11000101001011000…
…01100000101000101
31021011011101202210222
430110230030011011
5204044344430041
610025000154125
7645621254000
oct142454140505
937134352728
1013232030021
115680155001
122693468945
13132b491c82
148d74c8537
155269d674b
hex314b0c145

13232030021 has 16 divisors (see below), whose sum is σ = 15848006400. Its totient is φ = 11035195920.

The previous prime is 13232030011. The next prime is 13232030023. The reversal of 13232030021 is 12003023231.

It is not a de Polignac number, because 13232030021 - 218 = 13231767877 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 (13232030023) 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 15 ways as a sum of consecutive naturals, for example, 508625 + ... + 534006.

It is an arithmetic number, because the mean of its divisors is an integer number (990500400).

Almost surely, 213232030021 is an apocalyptic number.

It is an amenable number.

13232030021 is a deficient number, since it is larger than the sum of its proper divisors (2615976379).

13232030021 is an equidigital number, since it uses as much as digits as its factorization.

13232030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042689 (or 1042675 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13232030021 its reverse (12003023231), we get a palindrome (25235053252).

The spelling of 13232030021 in words is "thirteen billion, two hundred thirty-two million, thirty thousand, twenty-one".

Divisors: 1 7 37 49 259 343 1813 12691 1042631 7298417 38577347 51088919 270041429 357622433 1890290003 13232030021