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BaseRepresentation
bin101011001011110000000
32122220001220
411121132000
5330240130
650155040
715012324
oct5313600
92586056
101415040
11887160
12582a80
133a7103
1428b984
151ce410
hex159780

1415040 has 128 divisors (see below), whose sum is σ = 4993920. Its totient is φ = 337920.

The previous prime is 1415039. The next prime is 1415059. The reversal of 1415040 is 405141.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21087 + ... + 21153.

It is an arithmetic number, because the mean of its divisors is an integer number (39015).

21415040 is an apocalyptic number.

1415040 is a gapful number since it is divisible by the number (10) 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 1415040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2496960).

1415040 is an abundant number, since it is smaller than the sum of its proper divisors (3578880).

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

1415040 is a wasteful number, since it uses less digits than its factorization.

1415040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1415040 is about 1189.5545384723. The cubic root of 1415040 is about 112.2680653725.

The spelling of 1415040 in words is "one million, four hundred fifteen thousand, forty".