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1406180 = 22570309
BaseRepresentation
bin101010111010011100100
32122102220202
411113103210
5324444210
650050032
714644436
oct5272344
92572822
101406180
11880536
12579918
133a3079
14288656
151cb9a5
hex1574e4

1406180 has 12 divisors (see below), whose sum is σ = 2953020. Its totient is φ = 562464.

The previous prime is 1406173. The next prime is 1406213. The reversal of 1406180 is 816041.

It can be written as a sum of positive squares in 2 ways, for example, as 357604 + 1048576 = 598^2 + 1024^2 .

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: 70309 = 1406180 / (1 + 4 + 0 + 6 + 1 + 8 + 0).

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 3 ways as a sum of consecutive naturals, for example, 35135 + ... + 35174.

It is an arithmetic number, because the mean of its divisors is an integer number (246085).

21406180 is an apocalyptic number.

1406180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1406180 is an abundant number, since it is smaller than the sum of its proper divisors (1546840).

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

1406180 is a wasteful number, since it uses less digits than its factorization.

1406180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70318 (or 70316 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1406180 is about 1185.8246076043. The cubic root of 1406180 is about 112.0332596800.

It can be divided in two parts, 14061 and 80, that added together give a palindrome (14141).

The spelling of 1406180 in words is "one million, four hundred six thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 70309 140618 281236 351545 703090 1406180