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487172119 = 769596017
BaseRepresentation
bin11101000010011…
…010100000010111
31020221200220111211
4131002122200113
51444204001434
6120201442251
715033615610
oct3502324027
91227626454
10487172119
1122aaa5695
121171a0387
1379c13335
14489b6c07
152cb82464
hex1d09a817

487172119 has 4 divisors (see below), whose sum is σ = 556768144. Its totient is φ = 417576096.

The previous prime is 487172117. The next prime is 487172129. The reversal of 487172119 is 911271784.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 487172119 - 21 = 487172117 is a prime.

It is a super-2 number, since 2×4871721192 = 474673347061900322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487172113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34798002 + ... + 34798015.

It is an arithmetic number, because the mean of its divisors is an integer number (139192036).

Almost surely, 2487172119 is an apocalyptic number.

487172119 is a deficient number, since it is larger than the sum of its proper divisors (69596025).

487172119 is an equidigital number, since it uses as much as digits as its factorization.

487172119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69596024.

The product of its digits is 28224, while the sum is 40.

The square root of 487172119 is about 22071.9758743978. The cubic root of 487172119 is about 786.8539727030.

The spelling of 487172119 in words is "four hundred eighty-seven million, one hundred seventy-two thousand, one hundred nineteen".

Divisors: 1 7 69596017 487172119