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2130330154 = 21065165077
BaseRepresentation
bin111111011111010…
…0100001000101010
312111110120222120211
41332332210020222
513330331031104
6551220211334
7103535336041
oct17676441052
95443528524
102130330154
119a3574637
124b5539b4a
1327c47a1b4
14162d03558
15c7058e04
hex7efa422a

2130330154 has 4 divisors (see below), whose sum is σ = 3195495234. Its totient is φ = 1065165076.

The previous prime is 2130330143. The next prime is 2130330157. The reversal of 2130330154 is 4510330312.

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

It can be written as a sum of positive squares in only one way, i.e., 1871860225 + 258469929 = 43265^2 + 16077^2 .

It is not an unprimeable number, because it can be changed into a prime (2130330157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532582537 + ... + 532582540.

Almost surely, 22130330154 is an apocalyptic number.

2130330154 is a deficient number, since it is larger than the sum of its proper divisors (1065165080).

2130330154 is a wasteful number, since it uses less digits than its factorization.

2130330154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065165079.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2130330154 is about 46155.4997156352. The cubic root of 2130330154 is about 1286.7148254262.

Adding to 2130330154 its reverse (4510330312), we get a palindrome (6640660466).

The spelling of 2130330154 in words is "two billion, one hundred thirty million, three hundred thirty thousand, one hundred fifty-four".

Divisors: 1 2 1065165077 2130330154