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1996624512 = 27337179103
BaseRepresentation
bin111011100000010…
…0001001010000000
312011011000000221000
41313000201022000
513042113441022
6530042332000
7100323012501
oct16700411200
95134000830
101996624512
11935051603
124787ba000
1325a864b2c
1414d25aba8
15ba4476ac
hex77021280

1996624512 has 256 divisors, whose sum is σ = 6110208000. Its totient is φ = 641571840.

The previous prime is 1996624507. The next prime is 1996624523. The reversal of 1996624512 is 2154266991.

1996624512 is a `hidden beast` number, since 1 + 9 + 9 + 6 + 624 + 5 + 12 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19384653 + ... + 19384755.

It is an arithmetic number, because the mean of its divisors is an integer number (23868000).

Almost surely, 21996624512 is an apocalyptic number.

1996624512 is a gapful number since it is divisible by the number (12) 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 1996624512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3055104000).

1996624512 is an abundant number, since it is smaller than the sum of its proper divisors (4113583488).

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

1996624512 is a wasteful number, since it uses less digits than its factorization.

1996624512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 258 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 1996624512 is about 44683.6045099318. The cubic root of 1996624512 is about 1259.2118426942.

The spelling of 1996624512 in words is "one billion, nine hundred ninety-six million, six hundred twenty-four thousand, five hundred twelve".