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85944650 = 25211307509
BaseRepresentation
bin1010001111101…
…10100101001010
312222201102220012
411013312211022
5134000212100
612310031522
72062342331
oct507664512
9188642805
1085944650
1144571540
12249485a2
1314a6212c
14b5b2d18
15782a135
hex51f694a

85944650 has 48 divisors (see below), whose sum is σ = 175301280. Its totient is φ = 31089600.

The previous prime is 85944631. The next prime is 85944667. The reversal of 85944650 is 5644958.

It is a happy number.

It is a super-3 number, since 3×859446503 (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85944598 and 85944607.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168596 + ... + 169104.

It is an arithmetic number, because the mean of its divisors is an integer number (3652110).

Almost surely, 285944650 is an apocalyptic number.

85944650 is an abundant number, since it is smaller than the sum of its proper divisors (89356630).

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

85944650 is a wasteful number, since it uses less digits than its factorization.

85944650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 85944650 is about 9270.6337431699. The cubic root of 85944650 is about 441.3057801173.

The spelling of 85944650 in words is "eighty-five million, nine hundred forty-four thousand, six hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 307 509 550 614 1018 1535 2545 3070 3377 5090 5599 6754 7675 11198 12725 15350 16885 25450 27995 33770 55990 84425 139975 156263 168850 279950 312526 781315 1562630 1718893 3437786 3906575 7813150 8594465 17188930 42972325 85944650