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85671650 = 2523746309
BaseRepresentation
bin1010001101100…
…11111011100010
312222012120102002
411012303323202
5133412443100
612300124002
72060124401
oct506637342
9188176362
1085671650
11443a5419
1224836602
1314997aac
14b541638
1577c42d5
hex51b3ee2

85671650 has 24 divisors (see below), whose sum is σ = 163659540. Its totient is φ = 33341760.

The previous prime is 85671637. The next prime is 85671671. The reversal of 85671650 is 5617658.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 63984001 + 21687649 = 7999^2 + 4657^2 .

It is a super-2 number, since 2×856716502 = 14679263227445000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21305 + ... + 25004.

Almost surely, 285671650 is an apocalyptic number.

85671650 is a deficient number, since it is larger than the sum of its proper divisors (77987890).

85671650 is a wasteful number, since it uses less digits than its factorization.

85671650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46358 (or 46353 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 85671650 is about 9255.8981195776. The cubic root of 85671650 is about 440.8380206675.

The spelling of 85671650 in words is "eighty-five million, six hundred seventy-one thousand, six hundred fifty".

Divisors: 1 2 5 10 25 37 50 74 185 370 925 1850 46309 92618 231545 463090 1157725 1713433 2315450 3426866 8567165 17134330 42835825 85671650