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1396180 = 22569809
BaseRepresentation
bin101010100110111010100
32121221012101
411110313110
5324134210
645531444
714603332
oct5246724
92557171
101396180
11873a75
12573b84
1339b656
14284b52
151c8a3a
hex154dd4

1396180 has 12 divisors (see below), whose sum is σ = 2932020. Its totient is φ = 558464.

The previous prime is 1396141. The next prime is 1396183. The reversal of 1396180 is 816931.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 894916 + 501264 = 946^2 + 708^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396183) by changing a digit.

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, 34885 + ... + 34924.

It is an arithmetic number, because the mean of its divisors is an integer number (244335).

21396180 is an apocalyptic number.

1396180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1396180 is an abundant number, since it is smaller than the sum of its proper divisors (1535840).

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

1396180 is a wasteful number, since it uses less digits than its factorization.

1396180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69818 (or 69816 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1396180 is about 1181.6006093431. The cubic root of 1396180 is about 111.7670541031.

It can be divided in two parts, 13961 and 80, that added together give a palindrome (14041).

The spelling of 1396180 in words is "one million, three hundred ninety-six thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 69809 139618 279236 349045 698090 1396180