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207255120 = 24356712889
BaseRepresentation
bin11000101101001…
…11011001010000
3112102222122120120
430112213121100
5411024130440
632322110240
75064432222
oct1426473120
9472878516
10207255120
11a6a98926
12594ab380
1333c27687
141d750412
15132dddd0
hexc5a7650

207255120 has 80 divisors (see below), whose sum is σ = 652130880. Its totient is φ = 54438912.

The previous prime is 207255091. The next prime is 207255121. The reversal of 207255120 is 21552702.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207255121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9636 + ... + 22524.

It is an arithmetic number, because the mean of its divisors is an integer number (8151636).

Almost surely, 2207255120 is an apocalyptic number.

207255120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 207255120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326065440).

207255120 is an abundant number, since it is smaller than the sum of its proper divisors (444875760).

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

207255120 is a wasteful number, since it uses less digits than its factorization.

207255120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12972 (or 12966 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 207255120 is about 14396.3578727399. The cubic root of 207255120 is about 591.7910907626.

The spelling of 207255120 in words is "two hundred seven million, two hundred fifty-five thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 67 80 120 134 201 240 268 335 402 536 670 804 1005 1072 1340 1608 2010 2680 3216 4020 5360 8040 12889 16080 25778 38667 51556 64445 77334 103112 128890 154668 193335 206224 257780 309336 386670 515560 618672 773340 863563 1031120 1546680 1727126 2590689 3093360 3454252 4317815 5181378 6908504 8635630 10362756 12953445 13817008 17271260 20725512 25906890 34542520 41451024 51813780 69085040 103627560 207255120