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186752828061 = 32162491277021
BaseRepresentation
bin1010110111101101010…
…1100000001010011101
3122212001010101121212200
42231323111200022131
511024432210444221
6221443145122113
716330623563322
oct2557325401235
9585033347780
10186752828061
1172224114918
123023b189339
13147c29880b7
1490789b4b49
154cd049b426
hex2b7b56029d

186752828061 has 12 divisors (see below), whose sum is σ = 269770897500. Its totient is φ = 124494125760.

The previous prime is 186752828033. The next prime is 186752828147. The reversal of 186752828061 is 160828257681.

It can be written as a sum of positive squares in 2 ways, for example, as 164333755161 + 22419072900 = 405381^2 + 149730^2 .

It is not a de Polignac number, because 186752828061 - 25 = 186752828029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 186752827989 and 186752828007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (186752828011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 492270 + ... + 784751.

It is an arithmetic number, because the mean of its divisors is an integer number (22480908125).

Almost surely, 2186752828061 is an apocalyptic number.

It is an amenable number.

186752828061 is a deficient number, since it is larger than the sum of its proper divisors (83018069439).

186752828061 is a wasteful number, since it uses less digits than its factorization.

186752828061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293276 (or 1293273 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 186752828061 in words is "one hundred eighty-six billion, seven hundred fifty-two million, eight hundred twenty-eight thousand, sixty-one".

Divisors: 1 3 9 16249 48747 146241 1277021 3831063 11493189 20750314229 62250942687 186752828061