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85074275 = 52111353449
BaseRepresentation
bin1010001001000…
…10000101100011
312221002012222002
411010202011203
5133234334100
612235234215
72052055646
oct504420543
9187065862
1085074275
1144027620
12245a896b
1314818c10
14b427a5d
1577072d5
hex5122163

85074275 has 48 divisors (see below), whose sum is σ = 126554400. Its totient is φ = 55910400.

The previous prime is 85074271. The next prime is 85074287. The reversal of 85074275 is 57247058.

It is not a de Polignac number, because 85074275 - 22 = 85074271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85074271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 189251 + ... + 189699.

It is an arithmetic number, because the mean of its divisors is an integer number (2636550).

Almost surely, 285074275 is an apocalyptic number.

85074275 is a deficient number, since it is larger than the sum of its proper divisors (41480125).

85074275 is a wasteful number, since it uses less digits than its factorization.

85074275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 85074275 is about 9223.5717051476. The cubic root of 85074275 is about 439.8109983716.

The spelling of 85074275 in words is "eighty-five million, seventy-four thousand, two hundred seventy-five".

Divisors: 1 5 11 13 25 53 55 65 143 265 275 325 449 583 689 715 1325 2245 2915 3445 3575 4939 5837 7579 11225 14575 17225 23797 24695 29185 37895 64207 118985 123475 145925 189475 261767 309361 321035 594925 1308835 1546805 1605175 3402971 6544175 7734025 17014855 85074275