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75429125 = 533747347
BaseRepresentation
bin1000111111011…
…11010100000101
312020221012022022
410133233110011
5123302213000
611252412525
71604064662
oct437572405
9166835268
1075429125
113963a022
1221317145
131281ca25
14a036a69
15694e585
hex47ef505

75429125 has 32 divisors (see below), whose sum is σ = 99021312. Its totient is φ = 57297600.

The previous prime is 75429113. The next prime is 75429127. The reversal of 75429125 is 52192457.

It is not a de Polignac number, because 75429125 - 26 = 75429061 is a prime.

It is a super-3 number, since 3×754291253 (a number of 25 digits) contains 333 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 (75429127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217202 + ... + 217548.

It is an arithmetic number, because the mean of its divisors is an integer number (3094416).

Almost surely, 275429125 is an apocalyptic number.

It is an amenable number.

75429125 is a deficient number, since it is larger than the sum of its proper divisors (23592187).

75429125 is a wasteful number, since it uses less digits than its factorization.

75429125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 436 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 75429125 is about 8684.9942429457. The cubic root of 75429125 is about 422.5191102778.

The spelling of 75429125 in words is "seventy-five million, four hundred twenty-nine thousand, one hundred twenty-five".

Divisors: 1 5 25 37 47 125 185 235 347 925 1175 1735 1739 4625 5875 8675 8695 12839 16309 43375 43475 64195 81545 217375 320975 407725 603433 1604875 2038625 3017165 15085825 75429125