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55042145130 = 23571491759097
BaseRepresentation
bin110011010000110001…
…000111101101101010
312021001222111200102210
4303100301013231222
51400211242121010
641141440105550
73655665341220
oct632061075552
9167058450383
1055042145130
1121385946345
12a8016052b6
13526256665b
142942242b10
151672373b20
hexcd0c47b6a

55042145130 has 64 divisors (see below), whose sum is σ = 151986067200. Its totient is φ = 12496617984.

The previous prime is 55042145129. The next prime is 55042145143. The reversal of 55042145130 is 3154124055.

55042145130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 848259 + ... + 910838.

It is an arithmetic number, because the mean of its divisors is an integer number (2374782300).

Almost surely, 255042145130 is an apocalyptic number.

55042145130 is an abundant number, since it is smaller than the sum of its proper divisors (96943922070).

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

55042145130 is a wasteful number, since it uses less digits than its factorization.

55042145130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759263.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 55042145130 its reverse (3154124055), we get a palindrome (58196269185).

The spelling of 55042145130 in words is "fifty-five billion, forty-two million, one hundred forty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 149 210 298 447 745 894 1043 1490 2086 2235 3129 4470 5215 6258 10430 15645 31290 1759097 3518194 5277291 8795485 10554582 12313679 17590970 24627358 26386455 36941037 52772910 61568395 73882074 123136790 184705185 262105453 369410370 524210906 786316359 1310527265 1572632718 1834738171 2621054530 3669476342 3931581795 5504214513 7863163590 9173690855 11008429026 18347381710 27521072565 55042145130