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207256860852 = 22317271405071
BaseRepresentation
bin1100000100000101111…
…0001011100010110100
3201210222002100102010120
43001001132023202310
511343430224021402
6235113521451540
720655006151506
oct3010136134264
9653862312116
10207256860852
117a996105168
1234201aa0bb0
131670c8ca592
14a061bc1d76
1555d05ca3bc
hex304178b8b4

207256860852 has 12 divisors (see below), whose sum is σ = 483599342016. Its totient is φ = 69085620280.

The previous prime is 207256860851. The next prime is 207256860869. The reversal of 207256860852 is 258068652702.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 207256860795 and 207256860804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207256860851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8635702524 + ... + 8635702547.

It is an arithmetic number, because the mean of its divisors is an integer number (40299945168).

Almost surely, 2207256860852 is an apocalyptic number.

It is an amenable number.

207256860852 is an abundant number, since it is smaller than the sum of its proper divisors (276342481164).

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

207256860852 is a wasteful number, since it uses less digits than its factorization.

207256860852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17271405078 (or 17271405076 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 207256860852 in words is "two hundred seven billion, two hundred fifty-six million, eight hundred sixty thousand, eight hundred fifty-two".

Divisors: 1 2 3 4 6 12 17271405071 34542810142 51814215213 69085620284 103628430426 207256860852