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75014537 = 132443873
BaseRepresentation
bin1000111100010…
…10000110001001
312020011010121012
410132022012021
5123200431122
611235453305
71600420163
oct436120611
9166133535
1075014537
1139386594
1221157235
1312706100
149d69933
1568bb7e2
hex478a189

75014537 has 6 divisors (see below), whose sum is σ = 81228942. Its totient is φ = 69244032.

The previous prime is 75014531. The next prime is 75014551. The reversal of 75014537 is 73541057.

It can be written as a sum of positive squares in 3 ways, for example, as 2611456 + 72403081 = 1616^2 + 8509^2 .

It is not a de Polignac number, because 75014537 - 210 = 75013513 is a prime.

It is a super-2 number, since 2×750145372 = 11254361522648738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75014531) 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 5 ways as a sum of consecutive naturals, for example, 221768 + ... + 222105.

It is an arithmetic number, because the mean of its divisors is an integer number (13538157).

Almost surely, 275014537 is an apocalyptic number.

It is an amenable number.

75014537 is a deficient number, since it is larger than the sum of its proper divisors (6214405).

75014537 is a wasteful number, since it uses less digits than its factorization.

75014537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443899 (or 443886 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 75014537 is about 8661.0932912653. The cubic root of 75014537 is about 421.7435775144.

The spelling of 75014537 in words is "seventy-five million, fourteen thousand, five hundred thirty-seven".

Divisors: 1 13 169 443873 5770349 75014537