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1385442 = 232194051
BaseRepresentation
bin101010010001111100010
32121101110200
411102033202
5323313232
645410030
714530122
oct5221742
92541420
101385442
118669a3
12569916
133967b6
14280c82
151c577c
hex1523e2

1385442 has 24 divisors (see below), whose sum is σ = 3160560. Its totient is φ = 437400.

The previous prime is 1385441. The next prime is 1385459. The reversal of 1385442 is 2445831.

It is not an unprimeable number, because it can be changed into a prime (1385441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1684 + ... + 2367.

It is an arithmetic number, because the mean of its divisors is an integer number (131690).

21385442 is an apocalyptic number.

1385442 is an abundant number, since it is smaller than the sum of its proper divisors (1775118).

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

1385442 is a wasteful number, since it uses less digits than its factorization.

1385442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078 (or 4075 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1385442 is about 1177.0480024196. The cubic root of 1385442 is about 111.4797834475.

The spelling of 1385442 in words is "one million, three hundred eighty-five thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 4051 8102 12153 24306 36459 72918 76969 153938 230907 461814 692721 1385442