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207084845 = 51121013389
BaseRepresentation
bin11000101011111…
…01110100101101
3112102200000000002
430111331310231
5411003203340
632314314045
75063122622
oct1425756455
9472600002
10207084845
11a6991a00
1259428925
1333b98016
141d708349
15132a8715
hexc57dd2d

207084845 has 24 divisors (see below), whose sum is σ = 275932440. Its totient is φ = 149072000.

The previous prime is 207084811. The next prime is 207084851. The reversal of 207084845 is 548480702.

It can be written as a sum of positive squares in 4 ways, for example, as 131377444 + 75707401 = 11462^2 + 8701^2 .

It is not a de Polignac number, because 207084845 - 28 = 207084589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 207084799 and 207084808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59411 + ... + 62799.

It is an arithmetic number, because the mean of its divisors is an integer number (11497185).

Almost surely, 2207084845 is an apocalyptic number.

It is an amenable number.

207084845 is a deficient number, since it is larger than the sum of its proper divisors (68847595).

207084845 is a wasteful number, since it uses less digits than its factorization.

207084845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517 (or 3506 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 207084845 is about 14390.4428354377. The cubic root of 207084845 is about 591.6289800325.

The spelling of 207084845 in words is "two hundred seven million, eighty-four thousand, eight hundred forty-five".

Divisors: 1 5 11 55 101 121 505 605 1111 3389 5555 12221 16945 37279 61105 186395 342289 410069 1711445 2050345 3765179 18825895 41416969 207084845