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85049242 = 242524621
BaseRepresentation
bin1010001000110…
…11111110011010
312221000221121221
411010123332122
5133233033432
612234522254
72051622655
oct504337632
9187027557
1085049242
114400a833
122459638a
131480a6c5
14b41c89c
1576eeb97
hex511bf9a

85049242 has 4 divisors (see below), whose sum is σ = 127573866. Its totient is φ = 42524620.

The previous prime is 85049221. The next prime is 85049243. The reversal of 85049242 is 24294058.

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., 81884401 + 3164841 = 9049^2 + 1779^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85049198 and 85049207.

It is not an unprimeable number, because it can be changed into a prime (85049243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21262309 + ... + 21262312.

Almost surely, 285049242 is an apocalyptic number.

85049242 is a deficient number, since it is larger than the sum of its proper divisors (42524624).

85049242 is a wasteful number, since it uses less digits than its factorization.

85049242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42524623.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 85049242 is about 9222.2145930357. The cubic root of 85049242 is about 439.7678561927.

The spelling of 85049242 in words is "eighty-five million, forty-nine thousand, two hundred forty-two".

Divisors: 1 2 42524621 85049242