Search a number
-
+
6231147978 = 231194411333
BaseRepresentation
bin1011100110110011…
…11100010111001010
3121002021000010002110
411303121330113022
5100230133213403
62510151043150
7310261612116
oct56331742712
917067003073
106231147978
112708358780
12125a9704b6
13783c3a713
144317bc746
15267096103
hex17367c5ca

6231147978 has 16 divisors (see below), whose sum is σ = 13595232096. Its totient is φ = 1888226640.

The previous prime is 6231147941. The next prime is 6231147991. The reversal of 6231147978 is 8797411326.

It is a happy number.

It is an unprimeable number.

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, 47205601 + ... + 47205732.

It is an arithmetic number, because the mean of its divisors is an integer number (849702006).

Almost surely, 26231147978 is an apocalyptic number.

6231147978 is an abundant number, since it is smaller than the sum of its proper divisors (7364084118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6231147978 is a wasteful number, since it uses less digits than its factorization.

6231147978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94411349.

The product of its digits is 508032, while the sum is 48.

The square root of 6231147978 is about 78937.6208027579. The cubic root of 6231147978 is about 1840.1618456015.

The spelling of 6231147978 in words is "six billion, two hundred thirty-one million, one hundred forty-seven thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 11 22 33 66 94411333 188822666 283233999 566467998 1038524663 2077049326 3115573989 6231147978