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102110161 = 195374219
BaseRepresentation
bin1100001011000…
…01001111010001
321010010201210211
412011201033101
5202120011121
614044324121
72346631156
oct605411721
9233121724
10102110161
115270296a
122a243641
131820211a
14d7c022d
158e6ece1
hex61613d1

102110161 has 4 divisors (see below), whose sum is σ = 107484400. Its totient is φ = 96735924.

The previous prime is 102110111. The next prime is 102110167. The reversal of 102110161 is 161011201.

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.

It is a cyclic number.

It is not a de Polignac number, because 102110161 - 211 = 102108113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102110167) 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, 2687091 + ... + 2687128.

It is an arithmetic number, because the mean of its divisors is an integer number (26871100).

Almost surely, 2102110161 is an apocalyptic number.

It is an amenable number.

102110161 is a deficient number, since it is larger than the sum of its proper divisors (5374239).

102110161 is an equidigital number, since it uses as much as digits as its factorization.

102110161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5374238.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 102110161 is about 10104.9572487963. The cubic root of 102110161 is about 467.4010176785.

Adding to 102110161 its reverse (161011201), we get a palindrome (263121362).

The spelling of 102110161 in words is "one hundred two million, one hundred ten thousand, one hundred sixty-one".

Divisors: 1 19 5374219 102110161