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55387128301 = 233463513419
BaseRepresentation
bin110011100101010101…
…001000000111101101
312021222000122122101021
4303211111020013231
51401413101101201
641240002214141
74000354552111
oct634525100755
9167860578337
1055387128301
11215426542aa
12a899054351
1352b8b841cb
142975da5741
1516927baea1
hexce55481ed

55387128301 has 8 divisors (see below), whose sum is σ = 55745089920. Its totient is φ = 55030194912.

The previous prime is 55387128287. The next prime is 55387128337. The reversal of 55387128301 is 10382178355.

55387128301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55387128301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55387198301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148831 + ... + 364588.

It is an arithmetic number, because the mean of its divisors is an integer number (6968136240).

Almost surely, 255387128301 is an apocalyptic number.

It is an amenable number.

55387128301 is a deficient number, since it is larger than the sum of its proper divisors (357961619).

55387128301 is a wasteful number, since it uses less digits than its factorization.

55387128301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514115.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 55387128301 in words is "fifty-five billion, three hundred eighty-seven million, one hundred twenty-eight thousand, three hundred one".

Divisors: 1 233 463 107879 513419 119626627 237712997 55387128301