Search a number
-
+
12471761055 = 3513166938321
BaseRepresentation
bin10111001110101111…
…11111100010011111
31012012011211002212010
423213113333202133
5201020232323210
65421321042303
7621030135255
oct134727774237
935164732763
1012471761055
11531aa90746
122500926393
131239b10390
148645425d5
154cedab920
hex2e75ff89f

12471761055 has 32 divisors (see below), whose sum is σ = 21503240640. Its totient is φ = 6136104960.

The previous prime is 12471761033. The next prime is 12471761059. The reversal of 12471761055 is 55016717421.

It is not a de Polignac number, because 12471761055 - 214 = 12471744671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12471761059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306295 + ... + 344615.

It is an arithmetic number, because the mean of its divisors is an integer number (671976270).

Almost surely, 212471761055 is an apocalyptic number.

12471761055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12471761055 is a deficient number, since it is larger than the sum of its proper divisors (9031479585).

12471761055 is a wasteful number, since it uses less digits than its factorization.

12471761055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40011.

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 12471761055 in words is "twelve billion, four hundred seventy-one million, seven hundred sixty-one thousand, fifty-five".

Divisors: 1 3 5 13 15 39 65 195 1669 5007 8345 21697 25035 38321 65091 108485 114963 191605 325455 498173 574815 1494519 2490865 7472595 63957749 191873247 319788745 831450737 959366235 2494352211 4157253685 12471761055