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8137142 = 213312967
BaseRepresentation
bin11111000010100110110110
3120022102001122
4133002212312
54040342032
6450223542
7126110306
oct37024666
916272048
108137142
114658612
122884bb2
1318bb9a0
14111b606
15aab012
hex7c29b6

8137142 has 8 divisors (see below), whose sum is σ = 13144656. Its totient is φ = 3755592.

The previous prime is 8137141. The next prime is 8137183. The reversal of 8137142 is 2417318.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 312967 = 8137142 / (8 + 1 + 3 + 7 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8137141) 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 3 ways as a sum of consecutive naturals, for example, 156458 + ... + 156509.

It is an arithmetic number, because the mean of its divisors is an integer number (1643082).

Almost surely, 28137142 is an apocalyptic number.

8137142 is a deficient number, since it is larger than the sum of its proper divisors (5007514).

8137142 is a wasteful number, since it uses less digits than its factorization.

8137142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312982.

The product of its digits is 1344, while the sum is 26.

The square root of 8137142 is about 2852.5676153248. The cubic root of 8137142 is about 201.1363809625.

The spelling of 8137142 in words is "eight million, one hundred thirty-seven thousand, one hundred forty-two".

Divisors: 1 2 13 26 312967 625934 4068571 8137142