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2065925231 = 2610779133
BaseRepresentation
bin111101100100011…
…1000010001101111
312022222101212122022
41323020320101233
513212334101411
6540555540355
7102124034426
oct17310702157
95288355568
102065925231
11970185227
12497a5a6bb
1326c01a286
1415853a2bd
15c1585edb
hex7b23846f

2065925231 has 4 divisors (see below), whose sum is σ = 2066030472. Its totient is φ = 2065819992.

The previous prime is 2065925209. The next prime is 2065925249. The reversal of 2065925231 is 1325295602.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1325295602 = 2662647801.

It is a cyclic number.

It is not a de Polignac number, because 2065925231 - 214 = 2065908847 is a prime.

It is a super-2 number, since 2×20659252312 = 8536094120164806722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2065925191 and 2065925200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065925831) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13460 + ... + 65673.

It is an arithmetic number, because the mean of its divisors is an integer number (516507618).

Almost surely, 22065925231 is an apocalyptic number.

2065925231 is a deficient number, since it is larger than the sum of its proper divisors (105241).

2065925231 is an equidigital number, since it uses as much as digits as its factorization.

2065925231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105240.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2065925231 is about 45452.4502199826. The cubic root of 2065925231 is about 1273.6151013753.

The spelling of 2065925231 in words is "two billion, sixty-five million, nine hundred twenty-five thousand, two hundred thirty-one".

Divisors: 1 26107 79133 2065925231