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68842115 = 518737351
BaseRepresentation
bin1000001101001…
…11001010000011
311210112112121222
410012213022003
5120110421430
610455305255
71464101606
oct406471203
9153475558
1068842115
1135950111
121b07b22b
13113547a4
14920033d
15609c9e5
hex41a7283

68842115 has 8 divisors (see below), whose sum is σ = 82665888. Its totient is φ = 55036800.

The previous prime is 68842087. The next prime is 68842117. The reversal of 68842115 is 51124886.

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

It is not a de Polignac number, because 68842115 - 26 = 68842051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68842117) 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 in 7 ways as a sum of consecutive naturals, for example, 5690 + ... + 13040.

It is an arithmetic number, because the mean of its divisors is an integer number (10333236).

Almost surely, 268842115 is an apocalyptic number.

68842115 is a deficient number, since it is larger than the sum of its proper divisors (13823773).

68842115 is a wasteful number, since it uses less digits than its factorization.

68842115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9229.

The product of its digits is 15360, while the sum is 35.

The square root of 68842115 is about 8297.1148599980. The cubic root of 68842115 is about 409.8435155351.

The spelling of 68842115 in words is "sixty-eight million, eight hundred forty-two thousand, one hundred fifteen".

Divisors: 1 5 1873 7351 9365 36755 13768423 68842115