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68450071600 = 24521710066187
BaseRepresentation
bin111111101111111100…
…010011010000110000
320112200101212220211001
4333233330103100300
52110141204242400
651240122331344
74642154002651
oct775774232060
9215611786731
1068450071600
112703630aa09
1211323959b54
1365bb2c3761
143454c37528
151ba9502a6a
hexfeff13430

68450071600 has 60 divisors (see below), whose sum is σ = 174124920024. Its totient is φ = 25769436160.

The previous prime is 68450071597. The next prime is 68450071603. The reversal of 68450071600 is 617005486.

It is an interprime number because it is at equal distance from previous prime (68450071597) and next prime (68450071603).

It is a self number, because there is not a number n which added to its sum of digits gives 68450071600.

It is not an unprimeable number, because it can be changed into a prime (68450071603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5026294 + ... + 5039893.

Almost surely, 268450071600 is an apocalyptic number.

It is an amenable number.

68450071600 is an abundant number, since it is smaller than the sum of its proper divisors (105674848424).

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

68450071600 is a wasteful number, since it uses less digits than its factorization.

68450071600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10066222 (or 10066211 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 68450071600 in words is "sixty-eight billion, four hundred fifty million, seventy-one thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 34 40 50 68 80 85 100 136 170 200 272 340 400 425 680 850 1360 1700 3400 6800 10066187 20132374 40264748 50330935 80529496 100661870 161058992 171125179 201323740 251654675 342250358 402647480 503309350 684500716 805294960 855625895 1006618700 1369001432 1711251790 2013237400 2738002864 3422503580 4026474800 4278129475 6845007160 8556258950 13690014320 17112517900 34225035800 68450071600