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67848138 = 23311311119
BaseRepresentation
bin1000000101101…
…00011111001010
311201200001011000
410002310133022
5114332120023
610422115430
71452461661
oct402643712
9151601130
1067848138
1135331346
121a87bb76
1311097237
149021dd8
155e53243
hex40b47ca

67848138 has 32 divisors (see below), whose sum is σ = 152121600. Its totient is φ = 22413888.

The previous prime is 67848113. The next prime is 67848149. The reversal of 67848138 is 83184876.

It is a junction number, because it is equal to n+sod(n) for n = 67848093 and 67848102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543 + ... + 11661.

It is an arithmetic number, because the mean of its divisors is an integer number (4753800).

Almost surely, 267848138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67848138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76060800).

67848138 is an abundant number, since it is smaller than the sum of its proper divisors (84273462).

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

67848138 is a wasteful number, since it uses less digits than its factorization.

67848138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11243 (or 11237 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 67848138 is about 8236.9981182467. The cubic root of 67848138 is about 407.8614365109.

The spelling of 67848138 in words is "sixty-seven million, eight hundred forty-eight thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 113 226 339 678 1017 2034 3051 6102 11119 22238 33357 66714 100071 200142 300213 600426 1256447 2512894 3769341 7538682 11308023 22616046 33924069 67848138