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2147005 = 5761343
BaseRepresentation
bin1000001100001010111101
311001002010201
420030022331
51022201010
6114003501
724151330
oct10141275
94032121
102147005
111237093
12876591
135a2323
143dc617
152c623a
hex20c2bd

2147005 has 8 divisors (see below), whose sum is σ = 2944512. Its totient is φ = 1472208.

The previous prime is 2146993. The next prime is 2147009. The reversal of 2147005 is 5007412.

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

It is a cyclic number.

It is not a de Polignac number, because 2147005 - 213 = 2138813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147009) 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, 30637 + ... + 30706.

It is an arithmetic number, because the mean of its divisors is an integer number (368064).

22147005 is an apocalyptic number.

It is an amenable number.

2147005 is a deficient number, since it is larger than the sum of its proper divisors (797507).

2147005 is an equidigital number, since it uses as much as digits as its factorization.

2147005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61355.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2147005 is about 1465.2661874212. The cubic root of 2147005 is about 129.0063294373.

The spelling of 2147005 in words is "two million, one hundred forty-seven thousand, five".

Divisors: 1 5 7 35 61343 306715 429401 2147005