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85012768 = 252656649
BaseRepresentation
bin1010001000100…
…11000100100000
312220222002121001
411010103010200
5133230402033
612234041344
72051411431
oct504230440
9186862531
1085012768
1143a95395
1224579254
13147c6c19
14b40d488
1576e3e7d
hex5113120

85012768 has 12 divisors (see below), whose sum is σ = 167368950. Its totient is φ = 42506368.

The previous prime is 85012727. The next prime is 85012771. The reversal of 85012768 is 86721058.

It can be written as a sum of positive squares in only one way, i.e., 64834704 + 20178064 = 8052^2 + 4492^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328293 + ... + 1328356.

Almost surely, 285012768 is an apocalyptic number.

It is an amenable number.

85012768 is a deficient number, since it is larger than the sum of its proper divisors (82356182).

85012768 is a wasteful number, since it uses less digits than its factorization.

85012768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656659 (or 2656651 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 85012768 is about 9220.2368733130. The cubic root of 85012768 is about 439.7049812984.

The spelling of 85012768 in words is "eighty-five million, twelve thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 32 2656649 5313298 10626596 21253192 42506384 85012768