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2156153 = 11319081
BaseRepresentation
bin1000001110011001111001
311001112200112
420032121321
51022444103
6114114105
724220106
oct10163171
94045615
102156153
111242a4a
1287b935
135a653c
14401aad
152c8cd8
hex20e679

2156153 has 4 divisors (see below), whose sum is σ = 2175348. Its totient is φ = 2136960.

The previous prime is 2156123. The next prime is 2156159. The reversal of 2156153 is 3516512.

2156153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 162409 + 1993744 = 403^2 + 1412^2 .

It is a cyclic number.

It is not a de Polignac number, because 2156153 - 210 = 2155129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2156159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9428 + ... + 9653.

It is an arithmetic number, because the mean of its divisors is an integer number (543837).

22156153 is an apocalyptic number.

It is an amenable number.

2156153 is a deficient number, since it is larger than the sum of its proper divisors (19195).

2156153 is a wasteful number, since it uses less digits than its factorization.

2156153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19194.

The product of its digits is 900, while the sum is 23.

The square root of 2156153 is about 1468.3844864340. The cubic root of 2156153 is about 129.1892940357.

The spelling of 2156153 in words is "two million, one hundred fifty-six thousand, one hundred fifty-three".

Divisors: 1 113 19081 2156153