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2215043149 = 11201367559
BaseRepresentation
bin1000010000000110…
…1110000001001101
312201100222211222011
42010001232001031
514014022340044
61003444021221
7105614361514
oct20401560115
95640884864
102215043149
11a37374780
12519991811
13293b9a827
1417027567b
15ce6de134
hex8406e04d

2215043149 has 4 divisors (see below), whose sum is σ = 2416410720. Its totient is φ = 2013675580.

The previous prime is 2215043143. The next prime is 2215043183. The reversal of 2215043149 is 9413405122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2215043149 - 23 = 2215043141 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 2215043149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215043141) 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 in 3 ways as a sum of consecutive naturals, for example, 100683769 + ... + 100683790.

It is an arithmetic number, because the mean of its divisors is an integer number (604102680).

Almost surely, 22215043149 is an apocalyptic number.

It is an amenable number.

2215043149 is a deficient number, since it is larger than the sum of its proper divisors (201367571).

2215043149 is a wasteful number, since it uses less digits than its factorization.

2215043149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201367570.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2215043149 is about 47064.2449105475. The cubic root of 2215043149 is about 1303.5491083298.

The spelling of 2215043149 in words is "two billion, two hundred fifteen million, forty-three thousand, one hundred forty-nine".

Divisors: 1 11 201367559 2215043149