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1408125920 = 2558800787
BaseRepresentation
bin101001111101110…
…0100101111100000
310122010122012121212
41103323210233200
510340440012140
6351421005252
746615605245
oct12373445740
93563565555
101408125920
11662939933
123336b3828
13195965306
14d50295cc
158394c765
hex53ee4be0

1408125920 has 24 divisors (see below), whose sum is σ = 3326697864. Its totient is φ = 563250304.

The previous prime is 1408125913. The next prime is 1408125931. The reversal of 1408125920 is 295218041.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4400234 + ... + 4400553.

It is an arithmetic number, because the mean of its divisors is an integer number (138612411).

Almost surely, 21408125920 is an apocalyptic number.

1408125920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1408125920 is an abundant number, since it is smaller than the sum of its proper divisors (1918571944).

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

1408125920 is an equidigital number, since it uses as much as digits as its factorization.

1408125920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8800802 (or 8800794 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1408125920 is about 37525.0039307127. The cubic root of 1408125920 is about 1120.8491434624.

The spelling of 1408125920 in words is "one billion, four hundred eight million, one hundred twenty-five thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 8800787 17601574 35203148 44003935 70406296 88007870 140812592 176015740 281625184 352031480 704062960 1408125920