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55401127893 = 3223947282617
BaseRepresentation
bin110011100110001010…
…100001111111010101
312021222222222220012200
4303212022201333111
51401430142043033
641241222235113
74000614550206
oct634612417725
9167888886180
1055401127893
112154a546411
12a8a1885a99
1352bba463a7
142977bab5ad
151693b34013
hexce62a1fd5

55401127893 has 24 divisors (see below), whose sum is σ = 83591621568. Its totient is φ = 35290825152.

The previous prime is 55401127879. The next prime is 55401127933. The reversal of 55401127893 is 39872110455.

55401127893 is a `hidden beast` number, since 5 + 540 + 1 + 1 + 27 + 89 + 3 = 666.

It is not a de Polignac number, because 55401127893 - 212 = 55401123797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55401127813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54721 + ... + 337337.

It is an arithmetic number, because the mean of its divisors is an integer number (3482984232).

Almost surely, 255401127893 is an apocalyptic number.

It is an amenable number.

55401127893 is a deficient number, since it is larger than the sum of its proper divisors (28190493675).

55401127893 is a wasteful number, since it uses less digits than its factorization.

55401127893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283593 (or 283590 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 55401127893 in words is "fifty-five billion, four hundred one million, one hundred twenty-seven thousand, eight hundred ninety-three".

Divisors: 1 3 9 23 69 207 947 2841 8523 21781 65343 196029 282617 847851 2543553 6500191 19500573 58501719 267638299 802914897 2408744691 6155680877 18467042631 55401127893