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7138146 = 235322447
BaseRepresentation
bin11011001110101101100010
3111102122200210
4123032231202
53311410041
6412554550
7114446631
oct33165542
914378623
107138146
114035aa4
122482a56
13162c072
14d3b518
15960016
hex6ceb62

7138146 has 16 divisors (see below), whose sum is σ = 14546304. Its totient is φ = 2334384.

The previous prime is 7138123. The next prime is 7138169. The reversal of 7138146 is 6418317.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7138123) and next prime (7138169).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10906 + ... + 11541.

It is an arithmetic number, because the mean of its divisors is an integer number (909144).

Almost surely, 27138146 is an apocalyptic number.

7138146 is an abundant number, since it is smaller than the sum of its proper divisors (7408158).

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

7138146 is a wasteful number, since it uses less digits than its factorization.

7138146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22505.

The product of its digits is 4032, while the sum is 30.

The square root of 7138146 is about 2671.7308996229. The cubic root of 7138146 is about 192.5433286399.

The spelling of 7138146 in words is "seven million, one hundred thirty-eight thousand, one hundred forty-six".

Divisors: 1 2 3 6 53 106 159 318 22447 44894 67341 134682 1189691 2379382 3569073 7138146