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487138631874 = 23471727441957
BaseRepresentation
bin1110001011010111011…
…10011010000011000010
31201120101112021111221220
413011223232122003002
530440124442204444
61011442143255510
750123515023306
oct7055356320302
91646345244856
10487138631874
1117865a070244
127a4b18aa596
1336c246c778b
1419813063d06
15ca11967619
hex716bb9a0c2

487138631874 has 16 divisors (see below), whose sum is σ = 995006567808. Its totient is φ = 158924659952.

The previous prime is 487138631857. The next prime is 487138631923. The reversal of 487138631874 is 478136831784.

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, 863720697 + ... + 863721260.

It is an arithmetic number, because the mean of its divisors is an integer number (62187910488).

Almost surely, 2487138631874 is an apocalyptic number.

487138631874 is an abundant number, since it is smaller than the sum of its proper divisors (507867935934).

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

487138631874 is a wasteful number, since it uses less digits than its factorization.

487138631874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727442009.

The product of its digits is 21676032, while the sum is 60.

The spelling of 487138631874 in words is "four hundred eighty-seven billion, one hundred thirty-eight million, six hundred thirty-one thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 47 94 141 282 1727441957 3454883914 5182325871 10364651742 81189771979 162379543958 243569315937 487138631874