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7040871 = 33260773
BaseRepresentation
bin11010110110111101100111
3111020201021000
4122312331213
53300301441
6410524343
7113563215
oct32667547
914221230
107040871
113a79a02
1224366b3
1315c69c6
14d13cb5
159412b6
hex6b6f67

7040871 has 8 divisors (see below), whose sum is σ = 10430960. Its totient is φ = 4693896.

The previous prime is 7040867. The next prime is 7040893. The reversal of 7040871 is 1780407.

It is not a de Polignac number, because 7040871 - 22 = 7040867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 260773 = 7040871 / (7 + 0 + 4 + 0 + 8 + 7 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7040861) 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, 130360 + ... + 130413.

It is an arithmetic number, because the mean of its divisors is an integer number (1303870).

Almost surely, 27040871 is an apocalyptic number.

7040871 is a deficient number, since it is larger than the sum of its proper divisors (3390089).

7040871 is a wasteful number, since it uses less digits than its factorization.

7040871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260782 (or 260776 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 7040871 is about 2653.4639624461. The cubic root of 7040871 is about 191.6646979844.

The spelling of 7040871 in words is "seven million, forty thousand, eight hundred seventy-one".

Divisors: 1 3 9 27 260773 782319 2346957 7040871