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2144455252 = 22536113813
BaseRepresentation
bin111111111010001…
…1100101001010100
312112110011121120121
41333310130221110
513342440032002
6552443041324
7104066366062
oct17764345124
95473147517
102144455252
11a00541a75
124ba210244
13282384544
14164b3d032
15c83e9237
hex7fd1ca54

2144455252 has 6 divisors (see below), whose sum is σ = 3752796698. Its totient is φ = 1072227624.

The previous prime is 2144455219. The next prime is 2144455283. The reversal of 2144455252 is 2525544412.

It can be written as a sum of positive squares in only one way, i.e., 1865030596 + 279424656 = 43186^2 + 16716^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268056903 + ... + 268056910.

Almost surely, 22144455252 is an apocalyptic number.

It is an amenable number.

2144455252 is a deficient number, since it is larger than the sum of its proper divisors (1608341446).

2144455252 is a wasteful number, since it uses less digits than its factorization.

2144455252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536113817 (or 536113815 counting only the distinct ones).

The product of its digits is 64000, while the sum is 34.

The square root of 2144455252 is about 46308.2633230831. The cubic root of 2144455252 is about 1289.5524060598.

Adding to 2144455252 its reverse (2525544412), we get a palindrome (4669999664).

The spelling of 2144455252 in words is "two billion, one hundred forty-four million, four hundred fifty-five thousand, two hundred fifty-two".

Divisors: 1 2 4 536113813 1072227626 2144455252