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67838496 = 25311227283
BaseRepresentation
bin1000000101100…
…10001000100000
311201122112220220
410002302020200
5114331312441
610422003040
71452421605
oct402621040
9151575826
1067838496
1135325080
121a876480
1311092a2b
14901c6ac
155e50466
hex40b2220

67838496 has 96 divisors (see below), whose sum is σ = 195810048. Its totient is φ = 20394240.

The previous prime is 67838489. The next prime is 67838497. The reversal of 67838496 is 69483876.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (67838497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239571 + ... + 239853.

It is an arithmetic number, because the mean of its divisors is an integer number (2039688).

Almost surely, 267838496 is an apocalyptic number.

67838496 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67838496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97905024).

67838496 is an abundant number, since it is smaller than the sum of its proper divisors (127971552).

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

67838496 is a wasteful number, since it uses less digits than its factorization.

67838496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 526 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 67838496 is about 8236.4128114125. The cubic root of 67838496 is about 407.8421149968.

The spelling of 67838496 in words is "sixty-seven million, eight hundred thirty-eight thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 227 264 283 352 454 528 566 681 849 908 1056 1132 1362 1698 1816 2264 2497 2724 3113 3396 3632 4528 4994 5448 6226 6792 7264 7491 9056 9339 9988 10896 12452 13584 14982 18678 19976 21792 24904 27168 29964 37356 39952 49808 59928 64241 74712 79904 99616 119856 128482 149424 192723 239712 256964 298848 385446 513928 706651 770892 1027856 1413302 1541784 2055712 2119953 2826604 3083568 4239906 5653208 6167136 8479812 11306416 16959624 22612832 33919248 67838496