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106160209 = 123186239
BaseRepresentation
bin1100101001111…
…10000001010001
321101202111102121
412110332001101
5204134111314
614311214241
72426226661
oct624760121
9241674377
10106160209
1154a19811
122b677381
1318cbc6bc
14101561a1
1594bed24
hex653e051

106160209 has 4 divisors (see below), whose sum is σ = 106247680. Its totient is φ = 106072740.

The previous prime is 106160207. The next prime is 106160231. The reversal of 106160209 is 902061601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 902061601 = 7128865943.

It is a cyclic number.

It is not a de Polignac number, because 106160209 - 21 = 106160207 is a prime.

It is a super-2 number, since 2×1061602092 = 22539979949847362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106160207) 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, 41889 + ... + 44350.

It is an arithmetic number, because the mean of its divisors is an integer number (26561920).

Almost surely, 2106160209 is an apocalyptic number.

It is an amenable number.

106160209 is a deficient number, since it is larger than the sum of its proper divisors (87471).

106160209 is an equidigital number, since it uses as much as digits as its factorization.

106160209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87470.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 106160209 is about 10303.4076401936. The cubic root of 106160209 is about 473.5006595598.

The spelling of 106160209 in words is "one hundred six million, one hundred sixty thousand, two hundred nine".

Divisors: 1 1231 86239 106160209