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12323432430 = 23251723477451
BaseRepresentation
bin10110111101000100…
…01010011111101110
31011210211201020020100
423132202022133232
5200214244314210
65354501531530
7614246306301
oct133642123756
934724636210
1012323432430
115254290201
12247b113ba6
13121517816a
1484c970b38
154c1d5c5c0
hex2de88a7ee

12323432430 has 192 divisors, whose sum is σ = 36158773248. Its totient is φ = 2895129600.

The previous prime is 12323432419. The next prime is 12323432461. The reversal of 12323432430 is 3423432321.

12323432430 is a `hidden beast` number, since 12 + 323 + 4 + 324 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12323432394 and 12323432403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1650205 + ... + 1657655.

It is an arithmetic number, because the mean of its divisors is an integer number (188326944).

Almost surely, 212323432430 is an apocalyptic number.

12323432430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12323432430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18079386624).

12323432430 is an abundant number, since it is smaller than the sum of its proper divisors (23835340818).

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

12323432430 is a wasteful number, since it uses less digits than its factorization.

12323432430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7551 (or 7548 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 12323432430 its reverse (3423432321), we get a palindrome (15746864751).

The spelling of 12323432430 in words is "twelve billion, three hundred twenty-three million, four hundred thirty-two thousand, four hundred thirty".