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2144155054 = 21985965687
BaseRepresentation
bin111111111001101…
…0011010110101110
312112102121100210011
41333303103112232
513342400430204
6552432403434
7104064005626
oct17763232656
95472540704
102144155054
11a00357478
124ba0a657a
132822aaa02
14164aa1886
15c838a304
hex7fcd35ae

2144155054 has 16 divisors (see below), whose sum is σ = 3389500800. Its totient is φ = 1014454584.

The previous prime is 2144155043. The next prime is 2144155067. The reversal of 2144155054 is 4505514412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202 + ... + 65485.

It is an arithmetic number, because the mean of its divisors is an integer number (211843800).

Almost surely, 22144155054 is an apocalyptic number.

2144155054 is a deficient number, since it is larger than the sum of its proper divisors (1245345746).

2144155054 is a wasteful number, since it uses less digits than its factorization.

2144155054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66567.

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 2144155054 is about 46305.0219090759. The cubic root of 2144155054 is about 1289.4922292980.

Adding to 2144155054 its reverse (4505514412), we get a palindrome (6649669466).

The spelling of 2144155054 in words is "two billion, one hundred forty-four million, one hundred fifty-five thousand, fifty-four".

Divisors: 1 2 19 38 859 1718 16321 32642 65687 131374 1248053 2496106 56425133 112850266 1072077527 2144155054