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9042740 = 225764591
BaseRepresentation
bin100010011111…
…101100110100
3122000102022022
4202133230310
54303331430
6521452312
7136601450
oct42375464
918012268
109042740
115116a43
123041098
131b47c45
1412b5660
15bd94e5
hex89fb34

9042740 has 24 divisors (see below), whose sum is σ = 21702912. Its totient is φ = 3100320.

The previous prime is 9042739. The next prime is 9042743. The reversal of 9042740 is 472409.

It is a super-2 number, since 2×90427402 = 163542293415200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9042743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32156 + ... + 32435.

It is an arithmetic number, because the mean of its divisors is an integer number (904288).

Almost surely, 29042740 is an apocalyptic number.

It is an amenable number.

9042740 is an abundant number, since it is smaller than the sum of its proper divisors (12660172).

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

9042740 is a wasteful number, since it uses less digits than its factorization.

9042740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64607 (or 64605 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 9042740 is about 3007.1148963749. The cubic root of 9042740 is about 208.3371320196.

The spelling of 9042740 in words is "nine million, forty-two thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 64591 129182 258364 322955 452137 645910 904274 1291820 1808548 2260685 4521370 9042740