Search a number
-
+
68880896 = 29719219
BaseRepresentation
bin1000001101100…
…00101000000000
311210121111211022
410012300220000
5120113142041
610500205012
71464322640
oct406605000
9153544738
1068880896
1135977267
121b099768
1311369336
149210520
1560a924b
hex41b0a00

68880896 has 40 divisors (see below), whose sum is σ = 157296480. Its totient is φ = 29518848.

The previous prime is 68880893. The next prime is 68880899. The reversal of 68880896 is 69808886.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68880893) and next prime (68880899).

It is not an unprimeable number, because it can be changed into a prime (68880893) 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 3 ways as a sum of consecutive naturals, for example, 6026 + ... + 13193.

It is an arithmetic number, because the mean of its divisors is an integer number (3932412).

Almost surely, 268880896 is an apocalyptic number.

It is an amenable number.

68880896 is an abundant number, since it is smaller than the sum of its proper divisors (88415584).

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

68880896 is an equidigital number, since it uses as much as digits as its factorization.

68880896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19244 (or 19228 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 53.

The square root of 68880896 is about 8299.4515481446. The cubic root of 68880896 is about 409.9204604776.

The spelling of 68880896 in words is "sixty-eight million, eight hundred eighty thousand, eight hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1792 3584 19219 38438 76876 134533 153752 269066 307504 538132 615008 1076264 1230016 2152528 2460032 4305056 4920064 8610112 9840128 17220224 34440448 68880896