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75568668 = 22374719141
BaseRepresentation
bin1001000000100…
…01011000011100
312021012021201120
410200101120130
5123321144133
611255410540
71605215550
oct440213034
9167167646
1075568668
113972494a
1221383a50
131286b3b6
14a071860
15697aab3
hex481161c

75568668 has 48 divisors (see below), whose sum is σ = 205814784. Its totient is φ = 21130560.

The previous prime is 75568667. The next prime is 75568709. The reversal of 75568668 is 86686557.

Its product of digits (2419200) is a multiple of the sum of its prime divisors (19200).

It is a self number, because there is not a number n which added to its sum of digits gives 75568668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75568667) 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, 5623 + ... + 13518.

It is an arithmetic number, because the mean of its divisors is an integer number (4287808).

Almost surely, 275568668 is an apocalyptic number.

It is an amenable number.

75568668 is an abundant number, since it is smaller than the sum of its proper divisors (130246116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75568668 is a wasteful number, since it uses less digits than its factorization.

75568668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19202 (or 19200 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The square root of 75568668 is about 8693.0240998170. The cubic root of 75568668 is about 422.7795015761.

The spelling of 75568668 in words is "seventy-five million, five hundred sixty-eight thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 47 84 94 141 188 282 329 564 658 987 1316 1974 3948 19141 38282 57423 76564 114846 133987 229692 267974 401961 535948 803922 899627 1607844 1799254 2698881 3598508 5397762 6297389 10795524 12594778 18892167 25189556 37784334 75568668