Search a number
-
+
55031407061245 = 531438256775253
BaseRepresentation
bin11001000001100111111110…
…11110000010100011111101
321012211221200101012102002121
430200303333132002203331
524203113310201424440
6313013025052122541
714406613365664426
oct1440637736024375
9235757611172077
1055031407061245
111659776369060a
126209556a66451
132492593530b44
14d8376a22864d
1565675e79734a
hex320cff7828fd

55031407061245 has 16 divisors (see below), whose sum is σ = 69753237345792. Its totient is φ = 41614147270080.

The previous prime is 55031407061237. The next prime is 55031407061273. The reversal of 55031407061245 is 54216070413055.

It is not a de Polignac number, because 55031407061245 - 23 = 55031407061237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

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, 4128380962 + ... + 4128394291.

It is an arithmetic number, because the mean of its divisors is an integer number (4359577334112).

Almost surely, 255031407061245 is an apocalyptic number.

It is an amenable number.

55031407061245 is a deficient number, since it is larger than the sum of its proper divisors (14721830284547).

55031407061245 is a wasteful number, since it uses less digits than its factorization.

55031407061245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8256775332.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 55031407061245 in words is "fifty-five trillion, thirty-one billion, four hundred seven million, sixty-one thousand, two hundred forty-five".

Divisors: 1 5 31 43 155 215 1333 6665 8256775253 41283876265 255960032843 355041335879 1279800164215 1775206679395 11006281412249 55031407061245