Search a number
-
+
55029208947 = 3171079004097
BaseRepresentation
bin110011001111111111…
…110001011101110011
312021001002011110022220
4303033333301131303
51400144434141242
641140254532123
73655450362336
oct631777613563
9167032143286
1055029208947
1121379610189
12a7b9207043
13525c9874cb
14294063661d
15167116abec
hexccfff1773

55029208947 has 8 divisors (see below), whose sum is σ = 77688295056. Its totient is φ = 34528131072.

The previous prime is 55029208943. The next prime is 55029208957. The reversal of 55029208947 is 74980292055.

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

It is not a de Polignac number, because 55029208947 - 22 = 55029208943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1079004097 = 55029208947 / (5 + 5 + 0 + 2 + 9 + 2 + 0 + 8 + 9 + 4 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 55029208947.

It is not an unprimeable number, because it can be changed into a prime (55029208943) 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, 539501998 + ... + 539502099.

It is an arithmetic number, because the mean of its divisors is an integer number (9711036882).

Almost surely, 255029208947 is an apocalyptic number.

55029208947 is a deficient number, since it is larger than the sum of its proper divisors (22659086109).

55029208947 is a wasteful number, since it uses less digits than its factorization.

55029208947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079004117.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 55029208947 in words is "fifty-five billion, twenty-nine million, two hundred eight thousand, nine hundred forty-seven".

Divisors: 1 3 17 51 1079004097 3237012291 18343069649 55029208947