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103071161 = 199751613
BaseRepresentation
bin1100010010010…
…11110110111001
321011221120001102
412021023312321
5202341234121
614121101145
72361043004
oct611136671
9234846042
10103071161
11531a9986
122a6277b5
131847a66b
14d99053b
1590ae90b
hex624bdb9

103071161 has 4 divisors (see below), whose sum is σ = 103124772. Its totient is φ = 103017552.

The previous prime is 103071139. The next prime is 103071203. The reversal of 103071161 is 161170301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15555136 + 87516025 = 3944^2 + 9355^2 .

It is a cyclic number.

It is not a de Polignac number, because 103071161 - 210 = 103070137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103071131) 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, 23810 + ... + 27803.

It is an arithmetic number, because the mean of its divisors is an integer number (25781193).

Almost surely, 2103071161 is an apocalyptic number.

It is an amenable number.

103071161 is a deficient number, since it is larger than the sum of its proper divisors (53611).

103071161 is an equidigital number, since it uses as much as digits as its factorization.

103071161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53610.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 103071161 is about 10152.3968106059. The cubic root of 103071161 is about 468.8627415692.

The spelling of 103071161 in words is "one hundred three million, seventy-one thousand, one hundred sixty-one".

Divisors: 1 1997 51613 103071161