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85629028 = 2221407257
BaseRepresentation
bin1010001101010…
…01100001100100
312222010101221111
411012221201210
5133410112103
612255154404
72056556212
oct506514144
9188111844
1085629028
11443763a1
1224815a04
1314981584
14b52dcb2
1577b686d
hex51a9864

85629028 has 6 divisors (see below), whose sum is σ = 149850806. Its totient is φ = 42814512.

The previous prime is 85629013. The next prime is 85629031. The reversal of 85629028 is 82092658.

It can be written as a sum of positive squares in only one way, i.e., 62125924 + 23503104 = 7882^2 + 4848^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10703625 + ... + 10703632.

Almost surely, 285629028 is an apocalyptic number.

It is an amenable number.

85629028 is a deficient number, since it is larger than the sum of its proper divisors (64221778).

85629028 is a wasteful number, since it uses less digits than its factorization.

85629028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21407261 (or 21407259 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 85629028 is about 9253.5954093531. The cubic root of 85629028 is about 440.7649022947.

The spelling of 85629028 in words is "eighty-five million, six hundred twenty-nine thousand, twenty-eight".

Divisors: 1 2 4 21407257 42814514 85629028