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2150084161 = 8925212
BaseRepresentation
bin1000000000100111…
…1010111001000001
312112211202120222201
42000021322321001
513400410143121
6553203433201
7104165261641
oct20011727101
95484676881
102150084161
11a03737065
12500085801
132835a5664
141657a6521
15c8b5be91
hex8027ae41

2150084161 has 9 divisors (see below), whose sum is σ = 2178695593. Its totient is φ = 2121845440.

The previous prime is 2150084149. The next prime is 2150084173. The reversal of 2150084161 is 1614800512.

The square root of 2150084161 is 46369.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (2150084149) and next prime (2150084173).

It can be written as a sum of positive squares in 4 ways, for example, as 591413761 + 1558670400 = 24319^2 + 39480^2 .

It is not a de Polignac number, because 2150084161 - 217 = 2149953089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2150084191) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4126581 + ... + 4127101.

Almost surely, 22150084161 is an apocalyptic number.

2150084161 is the 46369-th square number.

2150084161 is the 23185-th centered octagonal number.

It is an amenable number.

2150084161 is a deficient number, since it is larger than the sum of its proper divisors (28611432).

2150084161 is an frugal number, since it uses more digits than its factorization.

2150084161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The cubic root of 2150084161 is about 1290.6797213037.

Adding to 2150084161 its reverse (1614800512), we get a palindrome (3764884673).

The spelling of 2150084161 in words is "two billion, one hundred fifty million, eighty-four thousand, one hundred sixty-one".

Divisors: 1 89 521 7921 46369 271441 4126841 24158249 2150084161