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207235985320 = 23571356932963
BaseRepresentation
bin1100000100000000111…
…0100010111110101000
3201210220122001211021201
43001000032202332220
511343404403012240
6235111454213544
720654333545060
oct3010016427650
9653818054251
10207235985320
117a985347061
12341b6ab42b4
131670849b7b0
14a05d10a3a0
1555cd854d9a
hex30403a2fa8

207235985320 has 64 divisors (see below), whose sum is σ = 573884277120. Its totient is φ = 65586772224.

The previous prime is 207235985287. The next prime is 207235985399. The reversal of 207235985320 is 23589532702.

It is a super-2 number, since 2×2072359853202 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28462842 + ... + 28470121.

It is an arithmetic number, because the mean of its divisors is an integer number (8966941830).

Almost surely, 2207235985320 is an apocalyptic number.

207235985320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207235985320 is an abundant number, since it is smaller than the sum of its proper divisors (366648291800).

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

207235985320 is a wasteful number, since it uses less digits than its factorization.

207235985320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56932994 (or 56932990 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 207235985320 in words is "two hundred seven billion, two hundred thirty-five million, nine hundred eighty-five thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 910 1820 3640 56932963 113865926 227731852 284664815 398530741 455463704 569329630 740128519 797061482 1138659260 1480257038 1594122964 1992653705 2277318520 2960514076 3188245928 3700642595 3985307410 5180899633 5921028152 7401285190 7970614820 10361799266 14802570380 15941229640 20723598532 25904498165 29605140760 41447197064 51808996330 103617992660 207235985320