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68584570 = 2543159499
BaseRepresentation
bin1000001011010…
…00010001111010
311210001110100021
410011220101322
5120024201240
610450001054
71461650005
oct405502172
9153043307
1068584570
113579466a
121ab7618a
13112944b2
14917453c
15604b54a
hex416847a

68584570 has 16 divisors (see below), whose sum is σ = 126324000. Its totient is φ = 26795664.

The previous prime is 68584567. The next prime is 68584573. The reversal of 68584570 is 7548586.

It is an interprime number because it is at equal distance from previous prime (68584567) and next prime (68584573).

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (68584573) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 79320 + ... + 80179.

It is an arithmetic number, because the mean of its divisors is an integer number (7895250).

Almost surely, 268584570 is an apocalyptic number.

68584570 is a deficient number, since it is larger than the sum of its proper divisors (57739430).

68584570 is a wasteful number, since it uses less digits than its factorization.

68584570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159549.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 68584570 is about 8281.5801632297. The cubic root of 68584570 is about 409.3317888077.

The spelling of 68584570 in words is "sixty-eight million, five hundred eighty-four thousand, five hundred seventy".

Divisors: 1 2 5 10 43 86 215 430 159499 318998 797495 1594990 6858457 13716914 34292285 68584570