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1077140 = 22553857
BaseRepresentation
bin100000110111110010100
32000201120002
410012332110
5233432030
635030432
712104231
oct4067624
92021502
101077140
116762a9
1243b418
132b937c
14200788
15164245
hex106f94

1077140 has 12 divisors (see below), whose sum is σ = 2262036. Its totient is φ = 430848.

The previous prime is 1077127. The next prime is 1077143. The reversal of 1077140 is 417701.

It can be written as a sum of positive squares in 2 ways, for example, as 327184 + 749956 = 572^2 + 866^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 53857 = 1077140 / (1 + 0 + 7 + 7 + 1 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26909 + ... + 26948.

It is an arithmetic number, because the mean of its divisors is an integer number (188503).

21077140 is an apocalyptic number.

1077140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1077140 is an abundant number, since it is smaller than the sum of its proper divisors (1184896).

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

1077140 is a wasteful number, since it uses less digits than its factorization.

1077140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53866 (or 53864 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 1077140 is about 1037.8535542166. The cubic root of 1077140 is about 102.5079113465.

The spelling of 1077140 in words is "one million, seventy-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 53857 107714 215428 269285 538570 1077140