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207755132730 = 23519715133559
BaseRepresentation
bin1100000101111100101…
…0111011111100111010
3201212020210221020122120
43001133022323330322
511400440303221410
6235235201302110
721003236330265
oct3013712737472
9655223836576
10207755132730
11801213a1202
1234320934936
131678bbc8c02
14a0ac047cdc
15560e201570
hex305f2bbf3a

207755132730 has 64 divisors (see below), whose sum is σ = 532247500800. Its totient is φ = 51746264640.

The previous prime is 207755132707. The next prime is 207755132807. The reversal of 207755132730 is 37231557702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2526310 + ... + 2607249.

It is an arithmetic number, because the mean of its divisors is an integer number (8316367200).

Almost surely, 2207755132730 is an apocalyptic number.

207755132730 is an abundant number, since it is smaller than the sum of its proper divisors (324492368070).

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

207755132730 is a wasteful number, since it uses less digits than its factorization.

207755132730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5133659.

The product of its (nonzero) digits is 308700, while the sum is 42.

The spelling of 207755132730 in words is "two hundred seven billion, seven hundred fifty-five million, one hundred thirty-two thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 71 95 114 142 190 213 285 355 426 570 710 1065 1349 2130 2698 4047 6745 8094 13490 20235 40470 5133559 10267118 15400677 25667795 30801354 51335590 77003385 97537621 154006770 195075242 292612863 364482689 487688105 585225726 728965378 975376210 1093448067 1463064315 1822413445 2186896134 2926128630 3644826890 5467240335 6925171091 10934480670 13850342182 20775513273 34625855455 41551026546 69251710910 103877566365 207755132730