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67431325 = 5213207481
BaseRepresentation
bin1000000010011…
…10101110011101
311200212212101111
410001032232131
5114230300300
610405142021
71446104533
oct401165635
9150785344
1067431325
1135077175
121a6ba911
1310c7c5c0
148d54153
155dbe9ba
hex404eb9d

67431325 has 12 divisors (see below), whose sum is σ = 90047188. Its totient is φ = 49795200.

The previous prime is 67431311. The next prime is 67431373. The reversal of 67431325 is 52313476.

It can be written as a sum of positive squares in 6 ways, for example, as 16208676 + 51222649 = 4026^2 + 7157^2 .

It is not a de Polignac number, because 67431325 - 29 = 67430813 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 103416 + ... + 104065.

Almost surely, 267431325 is an apocalyptic number.

67431325 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

67431325 is a deficient number, since it is larger than the sum of its proper divisors (22615863).

67431325 is a wasteful number, since it uses less digits than its factorization.

67431325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207504 (or 207499 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 67431325 is about 8211.6578715872. The cubic root of 67431325 is about 407.0245122042.

The spelling of 67431325 in words is "sixty-seven million, four hundred thirty-one thousand, three hundred twenty-five".

Divisors: 1 5 13 25 65 325 207481 1037405 2697253 5187025 13486265 67431325