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85240994 = 242620497
BaseRepresentation
bin1010001010010…
…10110010100010
312221101200122212
411011022302202
5133310202434
612243002122
72053352006
oct505126242
9187350585
1085240994
1144130903
1224669342
1314876a77
14b46c706
15773b8ce
hex514aca2

85240994 has 4 divisors (see below), whose sum is σ = 127861494. Its totient is φ = 42620496.

The previous prime is 85240949. The next prime is 85240999. The reversal of 85240994 is 49904258.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 77880625 + 7360369 = 8825^2 + 2713^2 .

It is not an unprimeable number, because it can be changed into a prime (85240999) 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 as a sum of consecutive naturals, namely, 21310247 + ... + 21310250.

Almost surely, 285240994 is an apocalyptic number.

85240994 is a deficient number, since it is larger than the sum of its proper divisors (42620500).

85240994 is a wasteful number, since it uses less digits than its factorization.

85240994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42620499.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 85240994 is about 9232.6049411853. The cubic root of 85240994 is about 440.0981082881.

The spelling of 85240994 in words is "eighty-five million, two hundred forty thousand, nine hundred ninety-four".

Divisors: 1 2 42620497 85240994