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106284191 = 138175707
BaseRepresentation
bin1100101010111…
…00010010011111
321101222210111112
412111130102133
5204202043231
614314012235
72430254306
oct625342237
9241883445
10106284191
1154aa3982
122b71707b
1319033c70
141018943d
1594e692b
hex655c49f

106284191 has 4 divisors (see below), whose sum is σ = 114459912. Its totient is φ = 98108472.

The previous prime is 106284181. The next prime is 106284209. The reversal of 106284191 is 191482601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 191482601 = 382350087.

It is a cyclic number.

It is not a de Polignac number, because 106284191 - 222 = 102089887 is a prime.

It is a super-2 number, since 2×1062841912 = 22592658513048962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106284181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4087841 + ... + 4087866.

It is an arithmetic number, because the mean of its divisors is an integer number (28614978).

Almost surely, 2106284191 is an apocalyptic number.

106284191 is a deficient number, since it is larger than the sum of its proper divisors (8175721).

106284191 is an equidigital number, since it uses as much as digits as its factorization.

106284191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8175720.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 106284191 is about 10309.4224377508. The cubic root of 106284191 is about 473.6849179260.

The spelling of 106284191 in words is "one hundred six million, two hundred eighty-four thousand, one hundred ninety-one".

Divisors: 1 13 8175707 106284191