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683362720 = 2554271017
BaseRepresentation
bin101000101110110…
…100100110100000
31202121212102102101
4220232310212200
52344420101340
6151450500144
722635326065
oct5056644640
91677772371
10683362720
11320816587
12170a34654
13ab765751
1466a86c6c
153eed7c9a
hex28bb49a0

683362720 has 24 divisors (see below), whose sum is σ = 1614444804. Its totient is φ = 273345024.

The previous prime is 683362711. The next prime is 683362733. The reversal of 683362720 is 27263386.

It can be written as a sum of positive squares in 2 ways, for example, as 671224464 + 12138256 = 25908^2 + 3484^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 683362720.

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 3 ways as a sum of consecutive naturals, for example, 2135349 + ... + 2135668.

Almost surely, 2683362720 is an apocalyptic number.

It is an amenable number.

683362720 is an abundant number, since it is smaller than the sum of its proper divisors (931082084).

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

683362720 is a wasteful number, since it uses less digits than its factorization.

683362720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4271032 (or 4271024 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 683362720 is about 26141.2073171841. The cubic root of 683362720 is about 880.8130914737.

The spelling of 683362720 in words is "six hundred eighty-three million, three hundred sixty-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 4271017 8542034 17084068 21355085 34168136 42710170 68336272 85420340 136672544 170840680 341681360 683362720