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85472188 = 2221368047
BaseRepresentation
bin1010001100000…
…11001110111100
312221211102210121
411012003032330
5133340102223
612251544324
72055334024
oct506031674
9187742717
1085472188
114427957a
122475b0a4
1314928079
14b4cca84
15778515d
hex51833bc

85472188 has 6 divisors (see below), whose sum is σ = 149576336. Its totient is φ = 42736092.

The previous prime is 85472171. The next prime is 85472197. The reversal of 85472188 is 88127458.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10684020 + ... + 10684027.

Almost surely, 285472188 is an apocalyptic number.

It is an amenable number.

85472188 is a deficient number, since it is larger than the sum of its proper divisors (64104148).

85472188 is a wasteful number, since it uses less digits than its factorization.

85472188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21368051 (or 21368049 counting only the distinct ones).

The product of its digits is 143360, while the sum is 43.

The square root of 85472188 is about 9245.1169814124. The cubic root of 85472188 is about 440.4956329504.

The spelling of 85472188 in words is "eighty-five million, four hundred seventy-two thousand, one hundred eighty-eight".

Divisors: 1 2 4 21368047 42736094 85472188