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2106247 = 112132103
BaseRepresentation
bin1000000010001110000111
310222000020011
420002032013
51014344442
6113051051
723621443
oct10021607
93860204
102106247
111209500
12856a87
13589900
143cb823
152b9117
hex202387

2106247 has 18 divisors (see below), whose sum is σ = 2531256. Its totient is φ = 1750320.

The previous prime is 2106239. The next prime is 2106257. The reversal of 2106247 is 7426012.

It is not a de Polignac number, because 2106247 - 23 = 2106239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106217) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 20398 + ... + 20500.

22106247 is an apocalyptic number.

2106247 is a deficient number, since it is larger than the sum of its proper divisors (425009).

2106247 is a wasteful number, since it uses less digits than its factorization.

2106247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2106247 is about 1451.2914938082. The cubic root of 2106247 is about 128.1847713979.

The spelling of 2106247 in words is "two million, one hundred six thousand, two hundred forty-seven".

Divisors: 1 11 13 103 121 143 169 1133 1339 1573 1859 12463 14729 17407 20449 162019 191477 2106247