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85071242 = 2103940939
BaseRepresentation
bin1010001001000…
…01010110001010
312221002001210202
411010201112022
5133234234432
612235212202
72052044054
oct504412612
9187061722
1085071242
1144025313
12245a7062
1314817719
14b4268d4
157706462
hex512158a

85071242 has 8 divisors (see below), whose sum is σ = 127732800. Its totient is φ = 42493644.

The previous prime is 85071241. The next prime is 85071263. The reversal of 85071242 is 24217058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (85071241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18392 + ... + 22547.

It is an arithmetic number, because the mean of its divisors is an integer number (15966600).

Almost surely, 285071242 is an apocalyptic number.

85071242 is a deficient number, since it is larger than the sum of its proper divisors (42661558).

85071242 is a wasteful number, since it uses less digits than its factorization.

85071242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41980.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 85071242 is about 9223.4072879820. The cubic root of 85071242 is about 439.8057717128.

The spelling of 85071242 in words is "eighty-five million, seventy-one thousand, two hundred forty-two".

Divisors: 1 2 1039 2078 40939 81878 42535621 85071242