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7940852 = 221985213
BaseRepresentation
bin11110010010101011110100
3112221102210122
4132102223310
54013101402
6442111112
7124332113
oct36225364
915842718
107940852
114534097
1227ab498
13185053a
1410a9c7a
15a6cca2
hex792af4

7940852 has 6 divisors (see below), whose sum is σ = 13896498. Its totient is φ = 3970424.

The previous prime is 7940851. The next prime is 7940857. The reversal of 7940852 is 2580497.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5550736 + 2390116 = 2356^2 + 1546^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940851) 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 as a sum of consecutive naturals, namely, 992603 + ... + 992610.

It is an arithmetic number, because the mean of its divisors is an integer number (2316083).

Almost surely, 27940852 is an apocalyptic number.

It is an amenable number.

7940852 is a deficient number, since it is larger than the sum of its proper divisors (5955646).

7940852 is a wasteful number, since it uses less digits than its factorization.

7940852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985217 (or 1985215 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 7940852 is about 2817.9517384086. The cubic root of 7940852 is about 199.5058802336.

The spelling of 7940852 in words is "seven million, nine hundred forty thousand, eight hundred fifty-two".

Divisors: 1 2 4 1985213 3970426 7940852