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85018323 = 3132612749
BaseRepresentation
bin1010001000101…
…00011011010011
312220222101012210
411010110123103
5133231041243
612234123203
72051433555
oct504243323
9186871183
1085018323
1143a99585
1224580503
13147c9600
14b4114d5
1576e5933
hex51146d3

85018323 has 24 divisors (see below), whose sum is σ = 124806000. Its totient is φ = 51442560.

The previous prime is 85018321. The next prime is 85018361. The reversal of 85018323 is 32381058.

It is a happy number.

It is not a de Polignac number, because 85018323 - 21 = 85018321 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (85018321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29553 + ... + 32301.

It is an arithmetic number, because the mean of its divisors is an integer number (5200250).

Almost surely, 285018323 is an apocalyptic number.

85018323 is a deficient number, since it is larger than the sum of its proper divisors (39787677).

85018323 is a wasteful number, since it uses less digits than its factorization.

85018323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839 (or 2826 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 85018323 is about 9220.5381079414. The cubic root of 85018323 is about 439.7145583225.

The spelling of 85018323 in words is "eighty-five million, eighteen thousand, three hundred twenty-three".

Divisors: 1 3 13 39 61 169 183 507 793 2379 2749 8247 10309 30927 35737 107211 167689 464581 503067 1393743 2179957 6539871 28339441 85018323