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68467408 = 244279213
BaseRepresentation
bin1000001010010…
…11101011010000
311202211111121221
410011023223100
5120011424113
610443254424
71460651302
oct405135320
9152744557
1068467408
1135714639
121ab1a414
1311253079
149143972
15602698d
hex414bad0

68467408 has 10 divisors (see below), whose sum is σ = 132655634. Its totient is φ = 34233696.

The previous prime is 68467363. The next prime is 68467409. The reversal of 68467408 is 80476486.

It can be written as a sum of positive squares in only one way, i.e., 68359824 + 107584 = 8268^2 + 328^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68467409) 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 as a sum of consecutive naturals, namely, 2139591 + ... + 2139622.

Almost surely, 268467408 is an apocalyptic number.

It is an amenable number.

68467408 is a deficient number, since it is larger than the sum of its proper divisors (64188226).

68467408 is a wasteful number, since it uses less digits than its factorization.

68467408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279221 (or 4279215 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 68467408 is about 8274.5034896361. The cubic root of 68467408 is about 409.0985708225.

The spelling of 68467408 in words is "sixty-eight million, four hundred sixty-seven thousand, four hundred eight".

Divisors: 1 2 4 8 16 4279213 8558426 17116852 34233704 68467408