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85620801 = 3728314407
BaseRepresentation
bin1010001101001…
…11100001000001
312222002222122210
411012213201001
5133404331201
612255052333
72056523220
oct506474101
9188088583
1085620801
11443701a2
12248110a9
131497a8c6
14b52acb7
1577b41d6
hex51a7841

85620801 has 16 divisors (see below), whose sum is σ = 130939904. Its totient is φ = 48749904.

The previous prime is 85620797. The next prime is 85620809. The reversal of 85620801 is 10802658.

It is not a de Polignac number, because 85620801 - 22 = 85620797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85620809) 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 15 ways as a sum of consecutive naturals, for example, 1261 + ... + 13146.

It is an arithmetic number, because the mean of its divisors is an integer number (8183744).

Almost surely, 285620801 is an apocalyptic number.

It is an amenable number.

85620801 is a deficient number, since it is larger than the sum of its proper divisors (45319103).

85620801 is a wasteful number, since it uses less digits than its factorization.

85620801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14700.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 85620801 is about 9253.1508687582. The cubic root of 85620801 is about 440.7507860187.

The spelling of 85620801 in words is "eighty-five million, six hundred twenty thousand, eight hundred one".

Divisors: 1 3 7 21 283 849 1981 5943 14407 43221 100849 302547 4077181 12231543 28540267 85620801