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2168153 = 13166781
BaseRepresentation
bin1000010001010101011001
311002011010222
420101111121
51023340103
6114245425
724300101
oct10212531
94064128
102168153
111250a69
12886875
135abb40
14406201
152cc638
hex211559

2168153 has 4 divisors (see below), whose sum is σ = 2334948. Its totient is φ = 2001360.

The previous prime is 2168149. The next prime is 2168183. The reversal of 2168153 is 3518612.

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 283024 + 1885129 = 532^2 + 1373^2 .

It is a cyclic number.

It is not a de Polignac number, because 2168153 - 22 = 2168149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2168143) 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, 83378 + ... + 83403.

It is an arithmetic number, because the mean of its divisors is an integer number (583737).

22168153 is an apocalyptic number.

It is an amenable number.

2168153 is a deficient number, since it is larger than the sum of its proper divisors (166795).

2168153 is a wasteful number, since it uses less digits than its factorization.

2168153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166794.

The product of its digits is 1440, while the sum is 26.

The square root of 2168153 is about 1472.4649401599. The cubic root of 2168153 is about 129.4285170705.

The spelling of 2168153 in words is "two million, one hundred sixty-eight thousand, one hundred fifty-three".

Divisors: 1 13 166781 2168153