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1397934 = 232372099
BaseRepresentation
bin101010101010010101110
32122000121100
411111102232
5324213214
645543530
714611416
oct5252256
92560540
101397934
1187531a
12574ba6
1339c3a5
14285646
151c9309
hex1554ae

1397934 has 24 divisors (see below), whose sum is σ = 3112200. Its totient is φ = 453168.

The previous prime is 1397933. The next prime is 1397939. The reversal of 1397934 is 4397931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397933) 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 11 ways as a sum of consecutive naturals, for example, 384 + ... + 1715.

It is an arithmetic number, because the mean of its divisors is an integer number (129675).

21397934 is an apocalyptic number.

1397934 is an abundant number, since it is smaller than the sum of its proper divisors (1714266).

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

1397934 is a wasteful number, since it uses less digits than its factorization.

1397934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144 (or 2141 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 1397934 is about 1182.3425899459. The cubic root of 1397934 is about 111.8138382752.

The spelling of 1397934 in words is "one million, three hundred ninety-seven thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 2099 4198 6297 12594 18891 37782 77663 155326 232989 465978 698967 1397934