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2148081 = 31355079
BaseRepresentation
bin1000001100011011110001
311001010121120
420030123301
51022214311
6114012453
724154425
oct10143361
94033546
102148081
111237981
12877129
135a2970
143dcb85
152c6706
hex20c6f1

2148081 has 8 divisors (see below), whose sum is σ = 3084480. Its totient is φ = 1321872.

The previous prime is 2148073. The next prime is 2148127. The reversal of 2148081 is 1808412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2148081 - 23 = 2148073 is a prime.

It is a super-2 number, since 2×21480812 = 9228503965122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2148011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27501 + ... + 27578.

It is an arithmetic number, because the mean of its divisors is an integer number (385560).

22148081 is an apocalyptic number.

It is an amenable number.

2148081 is a deficient number, since it is larger than the sum of its proper divisors (936399).

2148081 is a wasteful number, since it uses less digits than its factorization.

2148081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55095.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 2148081 is about 1465.6333102110. The cubic root of 2148081 is about 129.0278769151.

The spelling of 2148081 in words is "two million, one hundred forty-eight thousand, eighty-one".

Divisors: 1 3 13 39 55079 165237 716027 2148081