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8285354985 = 351929071421
BaseRepresentation
bin1111011011101100…
…00111101111101001
3210101102100122100110
413231312013233221
5113432022324420
63450051524533
7412214232615
oct75566075751
923342318313
108285354985
113571959916
1217328b9749
13a206b401b
14588548345
153375b4ee0
hex1edd87be9

8285354985 has 16 divisors (see below), whose sum is σ = 13954282560. Its totient is φ = 4186284480.

The previous prime is 8285354983. The next prime is 8285354993. The reversal of 8285354985 is 5894535828.

It is not a de Polignac number, because 8285354985 - 21 = 8285354983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (8285354983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14535426 + ... + 14535995.

It is an arithmetic number, because the mean of its divisors is an integer number (872142660).

Almost surely, 28285354985 is an apocalyptic number.

It is an amenable number.

8285354985 is a deficient number, since it is larger than the sum of its proper divisors (5668927575).

8285354985 is a wasteful number, since it uses less digits than its factorization.

8285354985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29071448.

The product of its digits is 13824000, while the sum is 57.

The square root of 8285354985 is about 91023.9253438347. The cubic root of 8285354985 is about 2023.5023207334.

The spelling of 8285354985 in words is "eight billion, two hundred eighty-five million, three hundred fifty-four thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 19 57 95 285 29071421 87214263 145357105 436071315 552356999 1657070997 2761784995 8285354985