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2069250081 = 317197927031
BaseRepresentation
bin111101101010110…
…0100000000100001
312100012122210110220
41323111210000201
513214212000311
6541155113253
7102164223033
oct17325440041
95305583426
102069250081
11972046238
12498ba2829
1326c912742
14158b63c53
15c19e1206
hex7b564021

2069250081 has 32 divisors (see below), whose sum is σ = 3114086400. Its totient is φ = 1214403840.

The previous prime is 2069250077. The next prime is 2069250097. The reversal of 2069250081 is 1800529602.

It is not a de Polignac number, because 2069250081 - 22 = 2069250077 is a prime.

It is a super-2 number, since 2×20692500812 = 8563591795437013122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2069250061) 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 31 ways as a sum of consecutive naturals, for example, 63036 + ... + 90066.

It is an arithmetic number, because the mean of its divisors is an integer number (97315200).

Almost surely, 22069250081 is an apocalyptic number.

It is an amenable number.

2069250081 is a deficient number, since it is larger than the sum of its proper divisors (1044836319).

2069250081 is a wasteful number, since it uses less digits than its factorization.

2069250081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27149.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 2069250081 is about 45489.0105520004. The cubic root of 2069250081 is about 1274.2979769313.

Adding to 2069250081 its reverse (1800529602), we get a palindrome (3869779683).

The spelling of 2069250081 in words is "two billion, sixty-nine million, two hundred fifty thousand, eighty-one".

Divisors: 1 3 17 19 51 57 79 237 323 969 1343 1501 4029 4503 25517 27031 76551 81093 459527 513589 1378581 1540767 2135449 6406347 8731013 26193039 36302633 40573531 108907899 121720593 689750027 2069250081