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389020020480 = 283257131919531
BaseRepresentation
bin1011010100100110110…
…01100110111100000000
31101012010110210121200200
411222103121212330000
522333203111123410
6454414025045200
740051164420630
oct5522331467400
91335113717620
10389020020480
1113aa89729263
126348a026800
132a8b8903540
1414b85c246c0
15a1bc9b13c0
hex5a93666f00

389020020480 has 864 divisors, whose sum is σ = 1743854461440. Its totient is φ = 77755023360.

The previous prime is 389020020479. The next prime is 389020020491. The reversal of 389020020480 is 84020020983.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 19908315 + ... + 19927845.

Almost surely, 2389020020480 is an apocalyptic number.

389020020480 is a gapful number since it is divisible by the number (30) 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 389020020480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871927230720).

389020020480 is an abundant number, since it is smaller than the sum of its proper divisors (1354834440960).

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

389020020480 is a wasteful number, since it uses less digits than its factorization.

389020020480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19597 (or 19580 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 389020020480 in words is "three hundred eighty-nine billion, twenty million, twenty thousand, four hundred eighty".