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2144200144 = 24292159349
BaseRepresentation
bin111111111001101…
…1110010111010000
312112102200122122011
41333303132113100
513342403401034
6552433352304
7104064254242
oct17763362720
95472618564
102144200144
11a00388339
124ba108694
132822c53a8
14164ab4092
15c8398864
hex7fcde5d0

2144200144 has 30 divisors (see below), whose sum is σ = 4302609350. Its totient is φ = 1035124608.

The previous prime is 2144200133. The next prime is 2144200153. The reversal of 2144200144 is 4410024412.

It can be written as a sum of positive squares in 3 ways, for example, as 751417744 + 1392782400 = 27412^2 + 37320^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66219 + ... + 93130.

Almost surely, 22144200144 is an apocalyptic number.

It is an amenable number.

2144200144 is an abundant number, since it is smaller than the sum of its proper divisors (2158409206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2144200144 is a wasteful number, since it uses less digits than its factorization.

2144200144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159415 (or 159380 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2144200144 is about 46305.5087867524. The cubic root of 2144200144 is about 1289.5012682583.

Adding to 2144200144 its reverse (4410024412), we get a palindrome (6554224556).

The spelling of 2144200144 in words is "two billion, one hundred forty-four million, two hundred thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 29 58 116 232 464 841 1682 3364 6728 13456 159349 318698 637396 1274792 2549584 4621121 9242242 18484484 36968968 73937936 134012509 268025018 536050036 1072100072 2144200144