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115438000 = 245357719
BaseRepresentation
bin1101110000101…
…11000110110000
322001012212011111
412320113012300
5214023004000
615242123104
72601130636
oct670270660
9261185144
10115438000
115a186307
12327b0494
131abba612
141148d356
15a203cba
hex6e171b0

115438000 has 40 divisors (see below), whose sum is σ = 279133920. Its totient is φ = 46174400.

The previous prime is 115437991. The next prime is 115438003. The reversal of 115438000 is 834511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115438003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26860 + ... + 30859.

It is an arithmetic number, because the mean of its divisors is an integer number (6978348).

Almost surely, 2115438000 is an apocalyptic number.

115438000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115438000 is an abundant number, since it is smaller than the sum of its proper divisors (163695920).

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

115438000 is an equidigital number, since it uses as much as digits as its factorization.

115438000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57742 (or 57726 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 115438000 is about 10744.2077418486. The cubic root of 115438000 is about 486.9110134287.

The spelling of 115438000 in words is "one hundred fifteen million, four hundred thirty-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 57719 115438 230876 288595 461752 577190 923504 1154380 1442975 2308760 2885950 4617520 5771900 7214875 11543800 14429750 23087600 28859500 57719000 115438000