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106886538 = 232114611171
BaseRepresentation
bin1100101111011…
…11010110001010
321110010101202200
412113233112022
5204330332123
614334541030
72435343363
oct627572612
9243111680
10106886538
1155375490
122b967776
13191b5195
14102a4b6a
1595b5143
hex65ef58a

106886538 has 48 divisors (see below), whose sum is σ = 253405152. Its totient is φ = 32292000.

The previous prime is 106886537. The next prime is 106886539. The reversal of 106886538 is 835688601.

106886538 is a `hidden beast` number, since 106 + 8 + 8 + 6 + 538 = 666.

It is an interprime number because it is at equal distance from previous prime (106886537) and next prime (106886539).

It is a super-2 number, since 2×1068865382 = 22849464011250888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106886493 and 106886502.

It is not an unprimeable number, because it can be changed into a prime (106886537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90693 + ... + 91863.

It is an arithmetic number, because the mean of its divisors is an integer number (5279274).

Almost surely, 2106886538 is an apocalyptic number.

106886538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 106886538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126702576).

106886538 is an abundant number, since it is smaller than the sum of its proper divisors (146518614).

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

106886538 is a wasteful number, since it uses less digits than its factorization.

106886538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 106886538 is about 10338.5945853390. The cubic root of 106886538 is about 474.5780748224.

The spelling of 106886538 in words is "one hundred six million, eight hundred eighty-six thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 461 922 1171 1383 2342 2766 3513 4149 5071 7026 8298 10142 10539 12881 15213 21078 25762 30426 38643 45639 77286 91278 115929 231858 539831 1079662 1619493 3238986 4858479 5938141 9716958 11876282 17814423 35628846 53443269 106886538