Search a number
-
+
17788412141 = 118138812
BaseRepresentation
bin10000100100010001…
…011010000011101101
31200220201000222001022
4100210101122003231
5242412313142031
612101043223525
71166546002613
oct204421320355
950821028038
1017788412141
1175a9105365
123545377ba5
1318a6449a76
14c0a6ad6b3
156e1a1097b
hex42445a0ed

17788412141 has 6 divisors (see below), whose sum is σ = 17808062826. Its totient is φ = 17768770400.

The previous prime is 17788412107. The next prime is 17788412183. The reversal of 17788412141 is 14121488771.

It can be written as a sum of positive squares in 3 ways, for example, as 8640446116 + 9147966025 = 92954^2 + 95645^2 .

It is a de Polignac number, because none of the positive numbers 2k-17788412141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17788412092 and 17788412101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17788442141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4581521 + ... + 4585401.

It is an arithmetic number, because the mean of its divisors is an integer number (2968010471).

Almost surely, 217788412141 is an apocalyptic number.

It is an amenable number.

17788412141 is a deficient number, since it is larger than the sum of its proper divisors (19650685).

17788412141 is an frugal number, since it uses more digits than its factorization.

17788412141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8943 (or 5062 counting only the distinct ones).

The product of its digits is 100352, while the sum is 44.

The spelling of 17788412141 in words is "seventeen billion, seven hundred eighty-eight million, four hundred twelve thousand, one hundred forty-one".

Divisors: 1 1181 3881 4583461 15062161 17788412141