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2115163 = 13915217
BaseRepresentation
bin1000000100011001011011
310222110110101
420010121123
51020141123
6113200231
723656441
oct10043133
93873411
102115163
111215176
12860077
1359099b
143d0b91
152bbaad
hex20465b

2115163 has 4 divisors (see below), whose sum is σ = 2130520. Its totient is φ = 2099808.

The previous prime is 2115133. The next prime is 2115181. The reversal of 2115163 is 3615112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2115163 - 25 = 2115131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2115163.

It is not an unprimeable number, because it can be changed into a prime (2115133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7470 + ... + 7747.

It is an arithmetic number, because the mean of its divisors is an integer number (532630).

22115163 is an apocalyptic number.

2115163 is a deficient number, since it is larger than the sum of its proper divisors (15357).

2115163 is a wasteful number, since it uses less digits than its factorization.

2115163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15356.

The product of its digits is 180, while the sum is 19.

The square root of 2115163 is about 1454.3599966996. The cubic root of 2115163 is about 128.3653906909.

It can be divided in two parts, 2115 and 163, that added together give a triangular number (2278 = T67).

The spelling of 2115163 in words is "two million, one hundred fifteen thousand, one hundred sixty-three".

Divisors: 1 139 15217 2115163