Search a number
-
+
55134331141 = 311778526811
BaseRepresentation
bin110011010110010000…
…110010000100000101
312021022101222012212111
4303112100302010011
51400403342044031
641154532021021
73661165040131
oct632620620405
9167271865774
1055134331141
112142299002a
12a828461771
1352786a25a6
14295059c3c1
15167a4d31b1
hexcd6432105

55134331141 has 4 divisors (see below), whose sum is σ = 56912857984. Its totient is φ = 53355804300.

The previous prime is 55134331139. The next prime is 55134331177. The reversal of 55134331141 is 14113343155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55134331141 - 21 = 55134331139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1778526811 = 55134331141 / (5 + 5 + 1 + 3 + 4 + 3 + 3 + 1 + 1 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55134331181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889263375 + ... + 889263436.

It is an arithmetic number, because the mean of its divisors is an integer number (14228214496).

Almost surely, 255134331141 is an apocalyptic number.

It is an amenable number.

55134331141 is a deficient number, since it is larger than the sum of its proper divisors (1778526843).

55134331141 is a wasteful number, since it uses less digits than its factorization.

55134331141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778526842.

The product of its digits is 10800, while the sum is 31.

Adding to 55134331141 its reverse (14113343155), we get a palindrome (69247674296).

The spelling of 55134331141 in words is "fifty-five billion, one hundred thirty-four million, three hundred thirty-one thousand, one hundred forty-one".

Divisors: 1 31 1778526811 55134331141