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1947042 = 232234703
BaseRepresentation
bin111011011010110100010
310122220211200
413123112202
5444301132
6105422030
722356336
oct7332642
93586750
101947042
11110a929
1279a916
135322c6
143897c6
15286d7c
hex1db5a2

1947042 has 24 divisors (see below), whose sum is σ = 4402944. Its totient is φ = 620664.

The previous prime is 1947041. The next prime is 1947073. The reversal of 1947042 is 2407491.

It is a happy number.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1946997 and 1947015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1947041) 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, 1938 + ... + 2765.

It is an arithmetic number, because the mean of its divisors is an integer number (183456).

21947042 is an apocalyptic number.

1947042 is an abundant number, since it is smaller than the sum of its proper divisors (2455902).

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

1947042 is a wasteful number, since it uses less digits than its factorization.

1947042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4734 (or 4731 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1947042 is about 1395.3644685171. The cubic root of 1947042 is about 124.8700943763.

The spelling of 1947042 in words is "one million, nine hundred forty-seven thousand, forty-two".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 4703 9406 14109 28218 42327 84654 108169 216338 324507 649014 973521 1947042