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683913256 = 231321932621
BaseRepresentation
bin101000110000111…
…011000000101000
31202122220101121121
4220300323000220
52400040211011
6151510345024
722643111125
oct5060730050
91678811547
10683913256
11321062174
1217105b174
13ab8c9200
1466b8b74c
1540095e71
hex28c3b028

683913256 has 48 divisors (see below), whose sum is σ = 1396293660. Its totient is φ = 313896960.

The previous prime is 683913253. The next prime is 683913259. The reversal of 683913256 is 652319386.

It is an interprime number because it is at equal distance from previous prime (683913253) and next prime (683913259).

It can be written as a sum of positive squares in 6 ways, for example, as 121749156 + 562164100 = 11034^2 + 23710^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683913253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259626 + ... + 262246.

Almost surely, 2683913256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 683913256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698146830).

683913256 is an abundant number, since it is smaller than the sum of its proper divisors (712380404).

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

683913256 is a wasteful number, since it uses less digits than its factorization.

683913256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846 (or 2829 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 683913256 is about 26151.7352387944. The cubic root of 683913256 is about 881.0495638178.

The spelling of 683913256 in words is "six hundred eighty-three million, nine hundred thirteen thousand, two hundred fifty-six".

Divisors: 1 2 4 8 13 26 52 104 169 193 338 386 676 772 1352 1544 2509 2621 5018 5242 10036 10484 20072 20968 32617 34073 65234 68146 130468 136292 260936 272584 442949 505853 885898 1011706 1771796 2023412 3543592 4046824 6576089 13152178 26304356 52608712 85489157 170978314 341956628 683913256