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68397802 = 2113108991
BaseRepresentation
bin1000001001110…
…10101011101010
311202200222010221
410010322223222
5120002212202
610442000254
71460241334
oct404725352
9152628127
1068397802
1135677310
121aaa608a
131122a495
149126454
156011037
hex413aaea

68397802 has 8 divisors (see below), whose sum is σ = 111923712. Its totient is φ = 31089900.

The previous prime is 68397787. The next prime is 68397803. The reversal of 68397802 is 20879386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×683978024 (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (68397803) by changing a digit.

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, 1554474 + ... + 1554517.

It is an arithmetic number, because the mean of its divisors is an integer number (13990464).

Almost surely, 268397802 is an apocalyptic number.

68397802 is a deficient number, since it is larger than the sum of its proper divisors (43525910).

68397802 is a wasteful number, since it uses less digits than its factorization.

68397802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109004.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 68397802 is about 8270.2963671201. The cubic root of 68397802 is about 408.9598898979.

It can be divided in two parts, 6839 and 7802, that added together give a palindrome (14641).

The spelling of 68397802 in words is "sixty-eight million, three hundred ninety-seven thousand, eight hundred two".

Divisors: 1 2 11 22 3108991 6217982 34198901 68397802