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2988161 = 11271651
BaseRepresentation
bin1011011001100010000001
312121210222122
423121202001
51231110121
6144014025
734253561
oct13314201
95553878
102988161
111761060
121001315
13808157
1457ada1
153e05ab
hex2d9881

2988161 has 4 divisors (see below), whose sum is σ = 3259824. Its totient is φ = 2716500.

The previous prime is 2988151. The next prime is 2988169. The reversal of 2988161 is 1618892.

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 2988161 - 214 = 2971777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2988169) 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, 135815 + ... + 135836.

It is an arithmetic number, because the mean of its divisors is an integer number (814956).

22988161 is an apocalyptic number.

It is an amenable number.

2988161 is a deficient number, since it is larger than the sum of its proper divisors (271663).

2988161 is a wasteful number, since it uses less digits than its factorization.

2988161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271662.

The product of its digits is 6912, while the sum is 35.

The square root of 2988161 is about 1728.6298042091. The cubic root of 2988161 is about 144.0349869977.

The spelling of 2988161 in words is "two million, nine hundred eighty-eight thousand, one hundred sixty-one".

Divisors: 1 11 271651 2988161