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75015113 is a prime number
BaseRepresentation
bin1000111100010…
…10001111001001
312020011011101112
410132022033021
5123200440423
611235500105
71600421645
oct436121711
9166134345
1075015113
1139386a68
1221157635
1312706454
149d69c25
1568bba78
hex478a3c9

75015113 has 2 divisors, whose sum is σ = 75015114. Its totient is φ = 75015112.

The previous prime is 75015077. The next prime is 75015131. The reversal of 75015113 is 31151057.

Together with next prime (75015131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73908409 + 1106704 = 8597^2 + 1052^2 .

It is a cyclic number.

It is not a de Polignac number, because 75015113 - 28 = 75014857 is a prime.

It is not a weakly prime, because it can be changed into another prime (75015313) 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 as a sum of consecutive naturals, namely, 37507556 + 37507557.

It is an arithmetic number, because the mean of its divisors is an integer number (37507557).

Almost surely, 275015113 is an apocalyptic number.

It is an amenable number.

75015113 is a deficient number, since it is larger than the sum of its proper divisors (1).

75015113 is an equidigital number, since it uses as much as digits as its factorization.

75015113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 75015113 is about 8661.1265433545. The cubic root of 75015113 is about 421.7446569659.

The spelling of 75015113 in words is "seventy-five million, fifteen thousand, one hundred thirteen".