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12132023358 = 2371322219823
BaseRepresentation
bin10110100110001111…
…11111110000111110
31011022111112122100110
423103013333300332
5144321244221413
65323503210450
7606433332330
oct132307776076
934274478313
1012132023358
115166235794
122426ba6a26
1311b460b260
14831387450
154b014d8c3
hex2d31ffc3e

12132023358 has 32 divisors (see below), whose sum is σ = 29863443456. Its totient is φ = 3199654368.

The previous prime is 12132023291. The next prime is 12132023359. The reversal of 12132023358 is 85332023121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132023359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11109366 + ... + 11110457.

It is an arithmetic number, because the mean of its divisors is an integer number (933232608).

Almost surely, 212132023358 is an apocalyptic number.

12132023358 is an abundant number, since it is smaller than the sum of its proper divisors (17731420098).

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

12132023358 is a wasteful number, since it uses less digits than its factorization.

12132023358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22219848.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 12132023358 its reverse (85332023121), we get a palindrome (97464046479).

The spelling of 12132023358 in words is "twelve billion, one hundred thirty-two million, twenty-three thousand, three hundred fifty-eight".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 22219823 44439646 66659469 133318938 155538761 288857699 311077522 466616283 577715398 866573097 933232566 1733146194 2022003893 4044007786 6066011679 12132023358