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85622663 = 771172279
BaseRepresentation
bin1010001101001…
…11111110000111
312222010002012202
411012213332013
5133404411123
612255105115
72056531520
oct506477607
9188102182
1085622663
1144371635
122481219b
131497b6c9
14b52b847
1577b4a28
hex51a7f87

85622663 has 8 divisors (see below), whose sum is σ = 99233280. Its totient is φ = 72356760.

The previous prime is 85622633. The next prime is 85622689. The reversal of 85622663 is 36622658.

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

It is not a de Polignac number, because 85622663 - 26 = 85622599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85622623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85643 + ... + 86636.

It is an arithmetic number, because the mean of its divisors is an integer number (12404160).

Almost surely, 285622663 is an apocalyptic number.

85622663 is a deficient number, since it is larger than the sum of its proper divisors (13610617).

85622663 is a wasteful number, since it uses less digits than its factorization.

85622663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172357.

The product of its digits is 103680, while the sum is 38.

The square root of 85622663 is about 9253.2514825871. The cubic root of 85622663 is about 440.7539810056.

The spelling of 85622663 in words is "eighty-five million, six hundred twenty-two thousand, six hundred sixty-three".

Divisors: 1 7 71 497 172279 1205953 12231809 85622663