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2989892928 = 2631171127157
BaseRepresentation
bin1011001000110110…
…0010010101000000
321201101000022001010
42302031202111000
522110403033203
61212403440520
7134043446001
oct26215422500
97641008033
102989892928
1112a47978a0
126b5386140
13388586019
142051351a8
15127749303
hexb2362540

2989892928 has 224 divisors, whose sum is σ = 8876556288. Its totient is φ = 880588800.

The previous prime is 2989892923. The next prime is 2989892933. The reversal of 2989892928 is 8292989892.

It is an interprime number because it is at equal distance from previous prime (2989892923) and next prime (2989892933).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989892923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19043826 + ... + 19043982.

Almost surely, 22989892928 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 2989892928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4438278144).

2989892928 is an abundant number, since it is smaller than the sum of its proper divisors (5886663360).

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

2989892928 is a wasteful number, since it uses less digits than its factorization.

2989892928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 371 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 66.

The square root of 2989892928 is about 54679.9133869102. The cubic root of 2989892928 is about 1440.6280902012.

The spelling of 2989892928 in words is "two billion, nine hundred eighty-nine million, eight hundred ninety-two thousand, nine hundred twenty-eight".