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85481407 = 1174310459
BaseRepresentation
bin1010001100001…
…01011110111111
312221211220110001
411012011132333
5133340401112
612252055131
72055402634
oct506053677
9187756401
1085481407
11442854a0
12247644a7
131492c31b
14b4d218b
157787c57
hex51857bf

85481407 has 8 divisors (see below), whose sum is σ = 93386880. Its totient is φ = 77598360.

The previous prime is 85481401. The next prime is 85481411. The reversal of 85481407 is 70418458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85481407 - 215 = 85448639 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 2944 + ... + 13402.

It is an arithmetic number, because the mean of its divisors is an integer number (11673360).

Almost surely, 285481407 is an apocalyptic number.

85481407 is a deficient number, since it is larger than the sum of its proper divisors (7905473).

85481407 is a wasteful number, since it uses less digits than its factorization.

85481407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11213.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 85481407 is about 9245.6155554944. The cubic root of 85481407 is about 440.5114696155.

The spelling of 85481407 in words is "eighty-five million, four hundred eighty-one thousand, four hundred seven".

Divisors: 1 11 743 8173 10459 115049 7771037 85481407