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7965138 = 233735879
BaseRepresentation
bin11110011000100111010010
3112222200010010
4132120213102
54014341023
6442415350
7124462656
oct36304722
915880103
107965138
114550365
122801556
13185b5cc
1410b4a66
15a75093
hex7989d2

7965138 has 16 divisors (see below), whose sum is σ = 16361280. Its totient is φ = 2583216.

The previous prime is 7965131. The next prime is 7965151. The reversal of 7965138 is 8315697.

It is a junction number, because it is equal to n+sod(n) for n = 7965096 and 7965105.

It is not an unprimeable number, because it can be changed into a prime (7965131) 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, 17718 + ... + 18161.

It is an arithmetic number, because the mean of its divisors is an integer number (1022580).

Almost surely, 27965138 is an apocalyptic number.

7965138 is an abundant number, since it is smaller than the sum of its proper divisors (8396142).

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

7965138 is a wasteful number, since it uses less digits than its factorization.

7965138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35921.

The product of its digits is 45360, while the sum is 39.

The square root of 7965138 is about 2822.2576069523. The cubic root of 7965138 is about 199.7090603090.

The spelling of 7965138 in words is "seven million, nine hundred sixty-five thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 37 74 111 222 35879 71758 107637 215274 1327523 2655046 3982569 7965138