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12920328000 = 2632531391291
BaseRepresentation
bin11000000100001110…
…01000111101000000
31020100102212200000200
430002013020331000
5202430100444000
65534023245200
7635114655516
oct140207107500
936312780020
1012920328000
115530208728
122606ba9800
1312aba279c8
148a7d4a4b6
15509465500
hex3021c8f40

12920328000 has 336 divisors, whose sum is σ = 46586729280. Its totient is φ = 3417984000.

The previous prime is 12920327999. The next prime is 12920328017. The reversal of 12920328000 is 82302921.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10007355 + ... + 10008645.

It is an arithmetic number, because the mean of its divisors is an integer number (138650980).

Almost surely, 212920328000 is an apocalyptic number.

12920328000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12920328000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23293364640).

12920328000 is an abundant number, since it is smaller than the sum of its proper divisors (33666401280).

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

12920328000 is a wasteful number, since it uses less digits than its factorization.

12920328000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463 (or 1440 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 12920328000 in words is "twelve billion, nine hundred twenty million, three hundred twenty-eight thousand".