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68488418 = 279433471
BaseRepresentation
bin1000001010100…
…00110011100010
311202212120110002
410011100303202
5120013112133
610443540002
71461066455
oct405206342
9152776402
1068488418
11357293a9
121ab2a602
131125c7bb
14914b49c
15602cce8
hex4150ce2

68488418 has 8 divisors (see below), whose sum is σ = 104033280. Its totient is φ = 33810660.

The previous prime is 68488391. The next prime is 68488423. The reversal of 68488418 is 81488486.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216578 + ... + 216893.

It is an arithmetic number, because the mean of its divisors is an integer number (13004160).

Almost surely, 268488418 is an apocalyptic number.

68488418 is a deficient number, since it is larger than the sum of its proper divisors (35544862).

68488418 is a wasteful number, since it uses less digits than its factorization.

68488418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433552.

The product of its digits is 393216, while the sum is 47.

The square root of 68488418 is about 8275.7729548363. The cubic root of 68488418 is about 409.1404120537.

The spelling of 68488418 in words is "sixty-eight million, four hundred eighty-eight thousand, four hundred eighteen".

Divisors: 1 2 79 158 433471 866942 34244209 68488418