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672531375 = 3531793417
BaseRepresentation
bin101000000101100…
…000001110101111
31201212111010121110
4220011200032233
52334132001000
6150422403103
722444264605
oct5005401657
91655433543
10672531375
1131569885a
12169290493
13a9442679
1465467875
153e098850
hex281603af

672531375 has 16 divisors (see below), whose sum is σ = 1119092832. Its totient is φ = 358683200.

The previous prime is 672531371. The next prime is 672531389. The reversal of 672531375 is 573135276.

It is not a de Polignac number, because 672531375 - 22 = 672531371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672531371) 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 15 ways as a sum of consecutive naturals, for example, 896334 + ... + 897083.

It is an arithmetic number, because the mean of its divisors is an integer number (69943302).

Almost surely, 2672531375 is an apocalyptic number.

672531375 is a deficient number, since it is larger than the sum of its proper divisors (446561457).

672531375 is a wasteful number, since it uses less digits than its factorization.

672531375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793435 (or 1793425 counting only the distinct ones).

The product of its digits is 132300, while the sum is 39.

The square root of 672531375 is about 25933.2098861672. The cubic root of 672531375 is about 876.1346368923.

The spelling of 672531375 in words is "six hundred seventy-two million, five hundred thirty-one thousand, three hundred seventy-five".

Divisors: 1 3 5 15 25 75 125 375 1793417 5380251 8967085 26901255 44835425 134506275 224177125 672531375