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85616903 = 292952307
BaseRepresentation
bin1010001101001…
…10100100000111
312222002210022102
411012212210013
5133404220103
612255022315
72056505651
oct506464407
9188083272
1085616903
1144368279
122480a99b
1314978bb8
14b5296d1
1577b2e88
hex51a6907

85616903 has 4 divisors (see below), whose sum is σ = 88569240. Its totient is φ = 82664568.

The previous prime is 85616899. The next prime is 85616929. The reversal of 85616903 is 30961658.

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

It is a cyclic number.

It is not a de Polignac number, because 85616903 - 22 = 85616899 is a prime.

It is a super-2 number, since 2×856169032 = 14660508158622818, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85616963) 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, 1476125 + ... + 1476182.

It is an arithmetic number, because the mean of its divisors is an integer number (22142310).

Almost surely, 285616903 is an apocalyptic number.

85616903 is a deficient number, since it is larger than the sum of its proper divisors (2952337).

85616903 is a wasteful number, since it uses less digits than its factorization.

85616903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952336.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 85616903 is about 9252.9402354063. The cubic root of 85616903 is about 440.7440973301.

The spelling of 85616903 in words is "eighty-five million, six hundred sixteen thousand, nine hundred three".

Divisors: 1 29 2952307 85616903