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389020896 = 2532111923281
BaseRepresentation
bin10111001011111…
…111110011100000
31000010000022100100
4113023333303200
51244042132041
6102334022400
712432423465
oct2713776340
91003008310
10389020896
1118a657180
12aa347a00
13627991a4
143994766c
15242456b6
hex172ffce0

389020896 has 288 divisors, whose sum is σ = 1330318080. Its totient is φ = 106444800.

The previous prime is 389020889. The next prime is 389020897. The reversal of 389020896 is 698020983.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389020897) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1384276 + ... + 1384556.

It is an arithmetic number, because the mean of its divisors is an integer number (4619160).

Almost surely, 2389020896 is an apocalyptic number.

389020896 is a gapful number since it is divisible by the number (36) 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 389020896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665159040).

389020896 is an abundant number, since it is smaller than the sum of its proper divisors (941297184).

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

389020896 is a wasteful number, since it uses less digits than its factorization.

389020896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 389020896 is about 19723.6126508305. The cubic root of 389020896 is about 730.0024369719.

The spelling of 389020896 in words is "three hundred eighty-nine million, twenty thousand, eight hundred ninety-six".