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8042137 = 10378079
BaseRepresentation
bin11110101011011010011001
3120010120201221
4132223122121
54024322022
6444212041
7125233315
oct36533231
916116657
108042137
1145a31a4
12283a021
13188767c
1410d4b45
15a8ccc7
hex7ab699

8042137 has 4 divisors (see below), whose sum is σ = 8120320. Its totient is φ = 7963956.

The previous prime is 8042101. The next prime is 8042147. The reversal of 8042137 is 7312408.

8042137 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8042137 - 27 = 8042009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8042147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38937 + ... + 39142.

It is an arithmetic number, because the mean of its divisors is an integer number (2030080).

Almost surely, 28042137 is an apocalyptic number.

It is an amenable number.

8042137 is a deficient number, since it is larger than the sum of its proper divisors (78183).

8042137 is a wasteful number, since it uses less digits than its factorization.

8042137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78182.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 8042137 is about 2835.8661816101. The cubic root of 8042137 is about 200.3505269620.

The spelling of 8042137 in words is "eight million, forty-two thousand, one hundred thirty-seven".

Divisors: 1 103 78079 8042137