Search a number
-
+
55106623131 = 373511747401
BaseRepresentation
bin110011010100100111…
…000101011010011011
312021020110211111121220
4303110213011122123
51400324243420011
641152102103123
73660410365560
oct632447053233
9167213744556
1055106623131
112140928564a
12a81b11aaa3
135272a20911
14294aa28867
151677d5d506
hexcd49c569b

55106623131 has 16 divisors (see below), whose sum is σ = 83996026368. Its totient is φ = 31480488000.

The previous prime is 55106623129. The next prime is 55106623133. The reversal of 55106623131 is 13132660155.

It is an interprime number because it is at equal distance from previous prime (55106623129) and next prime (55106623133).

It is not a de Polignac number, because 55106623131 - 21 = 55106623129 is a prime.

It is a super-2 number, since 2×551066231312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55106623092 and 55106623101.

It is not an unprimeable number, because it can be changed into a prime (55106623133) 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 15 ways as a sum of consecutive naturals, for example, 299970 + ... + 447431.

It is an arithmetic number, because the mean of its divisors is an integer number (5249751648).

Almost surely, 255106623131 is an apocalyptic number.

55106623131 is a deficient number, since it is larger than the sum of its proper divisors (28889403237).

55106623131 is a wasteful number, since it uses less digits than its factorization.

55106623131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750922.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 55106623131 in words is "fifty-five billion, one hundred six million, six hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 3 7 21 3511 10533 24577 73731 747401 2242203 5231807 15695421 2624124911 7872374733 18368874377 55106623131