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85447932 = 22371100291
BaseRepresentation
bin1010001011111…
…01010011111100
312221210012112020
411011331103330
5133333313212
612251240140
72055203223
oct505752374
9187705466
1085447932
1144262329
1224749050
131491a00b
14b4c3cba
15777cd8c
hex517d4fc

85447932 has 24 divisors (see below), whose sum is σ = 202188672. Its totient is φ = 28081200.

The previous prime is 85447931. The next prime is 85447951. The reversal of 85447932 is 23974458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85447931) 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, 49294 + ... + 50997.

It is an arithmetic number, because the mean of its divisors is an integer number (8424528).

Almost surely, 285447932 is an apocalyptic number.

It is an amenable number.

85447932 is an abundant number, since it is smaller than the sum of its proper divisors (116740740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85447932 is a wasteful number, since it uses less digits than its factorization.

85447932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100369 (or 100367 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 85447932 is about 9243.8050606879. The cubic root of 85447932 is about 440.4539598510.

The spelling of 85447932 in words is "eighty-five million, four hundred forty-seven thousand, nine hundred thirty-two".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 100291 200582 300873 401164 601746 1203492 7120661 14241322 21361983 28482644 42723966 85447932