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85484931 = 374070711
BaseRepresentation
bin1010001100001…
…10010110000011
312221212002021120
411012012112003
5133341004211
612252123323
72055416130
oct506062603
9187762246
1085484931
1144288104
1224766543
1314930acc
14b4d3587
157788d06
hex5186583

85484931 has 8 divisors (see below), whose sum is σ = 130262784. Its totient is φ = 48848520.

The previous prime is 85484897. The next prime is 85484947. The reversal of 85484931 is 13948458.

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

It is not a de Polignac number, because 85484931 - 211 = 85482883 is a prime.

It is a super-2 number, since 2×854849312 = 14615346856149522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85485931) 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 in 7 ways as a sum of consecutive naturals, for example, 2035335 + ... + 2035376.

It is an arithmetic number, because the mean of its divisors is an integer number (16282848).

Almost surely, 285484931 is an apocalyptic number.

85484931 is a deficient number, since it is larger than the sum of its proper divisors (44777853).

85484931 is a wasteful number, since it uses less digits than its factorization.

85484931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070721.

The product of its digits is 138240, while the sum is 42.

The square root of 85484931 is about 9245.8061303490. The cubic root of 85484931 is about 440.5175229439.

The spelling of 85484931 in words is "eighty-five million, four hundred eighty-four thousand, nine hundred thirty-one".

Divisors: 1 3 7 21 4070711 12212133 28494977 85484931