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1395087 = 31493121
BaseRepresentation
bin101010100100110001111
32121212200220
411110212033
5324120322
645522423
714600211
oct5244617
92555626
101395087
11873171
12573413
1339acc5
142845b1
151c855c
hex15498f

1395087 has 8 divisors (see below), whose sum is σ = 1873200. Its totient is φ = 923520.

The previous prime is 1395083. The next prime is 1395109. The reversal of 1395087 is 7805931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1395087 - 22 = 1395083 is a prime.

1395087 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1395083) 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 7 ways as a sum of consecutive naturals, for example, 1114 + ... + 2007.

It is an arithmetic number, because the mean of its divisors is an integer number (234150).

21395087 is an apocalyptic number.

1395087 is a deficient number, since it is larger than the sum of its proper divisors (478113).

1395087 is a wasteful number, since it uses less digits than its factorization.

1395087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1395087 is about 1181.1380105644. The cubic root of 1395087 is about 111.7378808632.

The spelling of 1395087 in words is "one million, three hundred ninety-five thousand, eighty-seven".

Divisors: 1 3 149 447 3121 9363 465029 1395087