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7042940 = 2252912143
BaseRepresentation
bin11010110111011101111100
3111020211002122
4122313131330
53300333230
6410542112
7113602232
oct32673574
914224078
107042940
113a80513
122437938
1315c7928
14d14952
15941be5
hex6b777c

7042940 has 24 divisors (see below), whose sum is σ = 15301440. Its totient is φ = 2719808.

The previous prime is 7042933. The next prime is 7042949. The reversal of 7042940 is 492407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5492 + ... + 6651.

It is an arithmetic number, because the mean of its divisors is an integer number (637560).

Almost surely, 27042940 is an apocalyptic number.

It is an amenable number.

7042940 is an abundant number, since it is smaller than the sum of its proper divisors (8258500).

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

7042940 is a wasteful number, since it uses less digits than its factorization.

7042940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12181 (or 12179 counting only the distinct ones).

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

The square root of 7042940 is about 2653.8538015497. The cubic root of 7042940 is about 191.6834700664.

The spelling of 7042940 in words is "seven million, forty-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 12143 24286 48572 60715 121430 242860 352147 704294 1408588 1760735 3521470 7042940