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85481404 = 2245194729
BaseRepresentation
bin1010001100001…
…01011110111100
312221211220102221
411012011132330
5133340401104
612252055124
72055402631
oct506053674
9187756387
1085481404
1144285498
12247644a4
131492c318
14b4d2188
157787c54
hex51857bc

85481404 has 12 divisors (see below), whose sum is σ = 149657200. Its totient is φ = 42722208.

The previous prime is 85481401. The next prime is 85481411. The reversal of 85481404 is 40418458.

It is a super-2 number, since 2×854814042 = 14614140859622432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85481404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85481401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15712 + ... + 20440.

Almost surely, 285481404 is an apocalyptic number.

It is an amenable number.

85481404 is a deficient number, since it is larger than the sum of its proper divisors (64175796).

85481404 is a wasteful number, since it uses less digits than its factorization.

85481404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9252 (or 9250 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 85481404 is about 9245.6153932553. The cubic root of 85481404 is about 440.5114644622.

The spelling of 85481404 in words is "eighty-five million, four hundred eighty-one thousand, four hundred four".

Divisors: 1 2 4 4519 4729 9038 9458 18076 18916 21370351 42740702 85481404