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188485124 = 2273645497
BaseRepresentation
bin10110011110000…
…00111000000100
3111010200000222112
423033000320010
5341223010444
630411520152
74446045212
oct1317007004
9433600875
10188485124
1197438733
1253159058
1330085079
141b065cb2
151183269e
hexb3c0e04

188485124 has 12 divisors (see below), whose sum is σ = 334367964. Its totient is φ = 92951424.

The previous prime is 188485109. The next prime is 188485127. The reversal of 188485124 is 421584881.

It can be written as a sum of positive squares in 2 ways, for example, as 145974724 + 42510400 = 12082^2 + 6520^2 .

It is not an unprimeable number, because it can be changed into a prime (188485127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322457 + ... + 323040.

It is an arithmetic number, because the mean of its divisors is an integer number (27863997).

Almost surely, 2188485124 is an apocalyptic number.

It is an amenable number.

188485124 is a deficient number, since it is larger than the sum of its proper divisors (145882840).

188485124 is a wasteful number, since it uses less digits than its factorization.

188485124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645574 (or 645572 counting only the distinct ones).

The product of its digits is 81920, while the sum is 41.

The square root of 188485124 is about 13728.9884550902. The cubic root of 188485124 is about 573.3577579583.

The spelling of 188485124 in words is "one hundred eighty-eight million, four hundred eighty-five thousand, one hundred twenty-four".

Divisors: 1 2 4 73 146 292 645497 1290994 2581988 47121281 94242562 188485124