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206600254140 = 22357499398519
BaseRepresentation
bin1100000001101001010…
…1011011001010111100
3201202021022211100001110
43000122111123022330
511341104131113030
6234524424242020
720632514120310
oct3003225331274
9652238740043
10206600254140
117a689503895
123405a010310
13166368723b7
149ddc901b40
155592b2a1b0
hex301a55b2bc

206600254140 has 96 divisors (see below), whose sum is σ = 661259934720. Its totient is φ = 47212978176.

The previous prime is 206600254123. The next prime is 206600254141. The reversal of 206600254140 is 41452006602.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 206600254098 and 206600254107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206600254141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2047801 + ... + 2146319.

It is an arithmetic number, because the mean of its divisors is an integer number (6888124320).

Almost surely, 2206600254140 is an apocalyptic number.

206600254140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206600254140 is an abundant number, since it is smaller than the sum of its proper divisors (454659680580).

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

206600254140 is a wasteful number, since it uses less digits than its factorization.

206600254140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103531 (or 103529 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 206600254140 in words is "two hundred six billion, six hundred million, two hundred fifty-four thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 4993 9986 14979 19972 24965 29958 34951 49930 59916 69902 74895 98519 99860 104853 139804 149790 174755 197038 209706 295557 299580 349510 394076 419412 492595 524265 591114 689633 699020 985190 1048530 1182228 1379266 1477785 1970380 2068899 2097060 2758532 2955570 3448165 4137798 5911140 6896330 8275596 10344495 13792660 20688990 41377980 491905367 983810734 1475716101 1967621468 2459526835 2951432202 3443337569 4919053670 5902864404 6886675138 7378580505 9838107340 10330012707 13773350276 14757161010 17216687845 20660025414 29514322020 34433375690 41320050828 51650063535 68866751380 103300127070 206600254140