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2106047 = 31411657
BaseRepresentation
bin1000000010001010111111
310221222221202
420002022333
51014343142
6113050115
723621036
oct10021277
93858852
102106047
111209339
1285693b
135897a8
143cb71d
152b9032
hex2022bf

2106047 has 8 divisors (see below), whose sum is σ = 2228352. Its totient is φ = 1987200.

The previous prime is 2106029. The next prime is 2106059. The reversal of 2106047 is 7406012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2106047 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 (2106347) 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, 443 + ... + 2099.

It is an arithmetic number, because the mean of its divisors is an integer number (278544).

22106047 is an apocalyptic number.

2106047 is a deficient number, since it is larger than the sum of its proper divisors (122305).

2106047 is a wasteful number, since it uses less digits than its factorization.

2106047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2106047 is about 1451.2225880271. Note that the first 3 decimals coincide. The cubic root of 2106047 is about 128.1807139812.

The spelling of 2106047 in words is "two million, one hundred six thousand, forty-seven".

Divisors: 1 31 41 1271 1657 51367 67937 2106047