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7681364 = 226131481
BaseRepresentation
bin11101010011010101010100
3112110020211222
4131103111110
53431300424
6432345512
7122201435
oct35232524
915406758
107681364
114377139
1226a5298
13178c3b2
14103d48c
15a1ae5e
hex753554

7681364 has 12 divisors (see below), whose sum is σ = 13663188. Its totient is φ = 3777600.

The previous prime is 7681363. The next prime is 7681367. The reversal of 7681364 is 4631867.

It can be written as a sum of positive squares in 2 ways, for example, as 348100 + 7333264 = 590^2 + 2708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7681361) 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, 15497 + ... + 15984.

It is an arithmetic number, because the mean of its divisors is an integer number (1138599).

Almost surely, 27681364 is an apocalyptic number.

It is an amenable number.

7681364 is a deficient number, since it is larger than the sum of its proper divisors (5981824).

7681364 is a wasteful number, since it uses less digits than its factorization.

7681364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31546 (or 31544 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 7681364 is about 2771.5273767365. The cubic root of 7681364 is about 197.3086455094.

The spelling of 7681364 in words is "seven million, six hundred eighty-one thousand, three hundred sixty-four".

Divisors: 1 2 4 61 122 244 31481 62962 125924 1920341 3840682 7681364