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2144104140 = 223583430543
BaseRepresentation
bin111111111001100…
…0110111011001100
312112102111202221110
41333303012323030
513342342313030
6552431332020
7104063404323
oct17763067314
95472452843
102144104140
11a003221a2
124ba081010
13282290799
14164a8b0ba
15c837a1b0
hex7fcc6ecc

2144104140 has 48 divisors (see below), whose sum is σ = 6075836928. Its totient is φ = 564871104.

The previous prime is 2144104129. The next prime is 2144104159. The reversal of 2144104140 is 414014412.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210292 + ... + 220251.

It is an arithmetic number, because the mean of its divisors is an integer number (126579936).

Almost surely, 22144104140 is an apocalyptic number.

2144104140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144104140 is an abundant number, since it is smaller than the sum of its proper divisors (3931732788).

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

2144104140 is a wasteful number, since it uses less digits than its factorization.

2144104140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430638 (or 430636 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 2144104140 is about 46304.4721382287. The cubic root of 2144104140 is about 1289.4820226781.

Adding to 2144104140 its reverse (414014412), we get a palindrome (2558118552).

The spelling of 2144104140 in words is "two billion, one hundred forty-four million, one hundred four thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 83 166 249 332 415 498 830 996 1245 1660 2490 4980 430543 861086 1291629 1722172 2152715 2583258 4305430 5166516 6458145 8610860 12916290 25832580 35735069 71470138 107205207 142940276 178675345 214410414 357350690 428820828 536026035 714701380 1072052070 2144104140