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890398080 = 2732511132347
BaseRepresentation
bin110101000100100…
…110010110000000
32022001102220112200
4311010212112000
53310420214310
6224204153200
731031154525
oct6504462600
92261386480
10890398080
11417674290
1220a238800
13112614090
148637b14c
15532819c0
hex35126580

890398080 has 768 divisors, whose sum is σ = 3849431040. Its totient is φ = 186531840.

The previous prime is 890398063. The next prime is 890398109. The reversal of 890398080 is 80893098.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 18944617 + ... + 18944663.

It is an arithmetic number, because the mean of its divisors is an integer number (5012280).

Almost surely, 2890398080 is an apocalyptic number.

890398080 is a gapful number since it is divisible by the number (80) 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 890398080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1924715520).

890398080 is an abundant number, since it is smaller than the sum of its proper divisors (2959032960).

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

890398080 is a wasteful number, since it uses less digits than its factorization.

890398080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 890398080 is about 29839.5388704316. The cubic root of 890398080 is about 962.0435634222.

The spelling of 890398080 in words is "eight hundred ninety million, three hundred ninety-eight thousand, eighty".