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2215142 = 21107571
BaseRepresentation
bin1000011100110011100110
311011112121022
420130303212
51031341032
6115251142
724554066
oct10346346
94145538
102215142
1112832a6
128a9ab2
135c7347
144193a6
152db512
hex21cce6

2215142 has 4 divisors (see below), whose sum is σ = 3322716. Its totient is φ = 1107570.

The previous prime is 2215141. The next prime is 2215159. The reversal of 2215142 is 2415122.

2215142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2215142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553784 + ... + 553787.

It is an arithmetic number, because the mean of its divisors is an integer number (830679).

22215142 is an apocalyptic number.

2215142 is a deficient number, since it is larger than the sum of its proper divisors (1107574).

2215142 is a wasteful number, since it uses less digits than its factorization.

2215142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107573.

The product of its digits is 160, while the sum is 17.

The square root of 2215142 is about 1488.3353116821. The cubic root of 2215142 is about 130.3568499256.

The spelling of 2215142 in words is "two million, two hundred fifteen thousand, one hundred forty-two".

Divisors: 1 2 1107571 2215142