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8042013 = 3271071193
BaseRepresentation
bin11110101011011000011101
3120010120120100
4132223120131
54024321023
6444211313
7125233050
oct36533035
916116510
108042013
1145a30a1
122839b39
1318875b5
1410d4a97
15a8cc43
hex7ab61d

8042013 has 24 divisors (see below), whose sum is σ = 13411008. Its totient is φ = 4548672.

The previous prime is 8042009. The next prime is 8042017. The reversal of 8042013 is 3102408.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8042009) and next prime (8042017).

It is not a de Polignac number, because 8042013 - 22 = 8042009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8042017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6145 + ... + 7337.

It is an arithmetic number, because the mean of its divisors is an integer number (558792).

Almost surely, 28042013 is an apocalyptic number.

It is an amenable number.

8042013 is a deficient number, since it is larger than the sum of its proper divisors (5368995).

8042013 is a wasteful number, since it uses less digits than its factorization.

8042013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 8042013 is about 2835.8443187171. The cubic root of 8042013 is about 200.3494972360.

The spelling of 8042013 in words is "eight million, forty-two thousand, thirteen".

Divisors: 1 3 7 9 21 63 107 321 749 963 1193 2247 3579 6741 8351 10737 25053 75159 127651 382953 893557 1148859 2680671 8042013