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12132212316 = 22371723521709
BaseRepresentation
bin10110100110010001…
…01101111001011100
31011022111220020112220
423103020231321130
5144321321243231
65323511225340
7606435050250
oct132310557134
934274806486
1012132212316
115166354754
122427078250
1311b4676273
148313d6260
154b0189896
hex2d322de5c

12132212316 has 192 divisors, whose sum is σ = 35864156160. Its totient is φ = 3110215680.

The previous prime is 12132212269. The next prime is 12132212357. The reversal of 12132212316 is 61321223121.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17111370 + ... + 17112078.

It is an arithmetic number, because the mean of its divisors is an integer number (186792480).

Almost surely, 212132212316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12132212316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17932078080).

12132212316 is an abundant number, since it is smaller than the sum of its proper divisors (23731943844).

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

12132212316 is a wasteful number, since it uses less digits than its factorization.

12132212316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1282 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 12132212316 its reverse (61321223121), we get a palindrome (73453435437).

The spelling of 12132212316 in words is "twelve billion, one hundred thirty-two million, two hundred twelve thousand, three hundred sixteen".