Search a number
-
+
5500421231 = 55710099787
BaseRepresentation
bin1010001111101100…
…11100010001101111
3112012100000100102212
411013312130101233
542231101434411
62305445041035
7253206544334
oct50766342157
915170010385
105500421231
112372931978
1210960b617b
13698730626
143a272698b
15222d5468b
hex147d9c46f

5500421231 has 8 divisors (see below), whose sum is σ = 5516321040. Its totient is φ = 5484544128.

The previous prime is 5500421219. The next prime is 5500421237. The reversal of 5500421231 is 1321240055.

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-5500421231 is a prime.

It is a super-2 number, since 2×55004212312 = 60509267436871110722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5500421197 and 5500421206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5500421237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557120 + ... + 566906.

It is an arithmetic number, because the mean of its divisors is an integer number (689540130).

Almost surely, 25500421231 is an apocalyptic number.

5500421231 is a deficient number, since it is larger than the sum of its proper divisors (15899809).

5500421231 is a wasteful number, since it uses less digits than its factorization.

5500421231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11353.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 5500421231 is about 74164.8247554054. The cubic root of 5500421231 is about 1765.2192299114.

Adding to 5500421231 its reverse (1321240055), we get a palindrome (6821661286).

The spelling of 5500421231 in words is "five billion, five hundred million, four hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 557 1009 9787 562013 5451359 9875083 5500421231