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19020033 = 322113337
BaseRepresentation
bin100100010001…
…1100100000001
31022210022120200
41020203210001
514332120113
61515355413
7320444664
oct110434401
938708520
1019020033
11a81103a
126452b69
133c2c376
1427516db
151a0a873
hex1223901

19020033 has 6 divisors (see below), whose sum is σ = 27473394. Its totient is φ = 12680016.

The previous prime is 19019953. The next prime is 19020037. The reversal of 19020033 is 33002091.

It can be written as a sum of positive squares in only one way, i.e., 17040384 + 1979649 = 4128^2 + 1407^2 .

It is not a de Polignac number, because 19020033 - 210 = 19019009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19019988 and 19020015.

It is not an unprimeable number, because it can be changed into a prime (19020037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1056660 + ... + 1056677.

It is an arithmetic number, because the mean of its divisors is an integer number (4578899).

Almost surely, 219020033 is an apocalyptic number.

It is an amenable number.

19020033 is a deficient number, since it is larger than the sum of its proper divisors (8453361).

19020033 is a wasteful number, since it uses less digits than its factorization.

19020033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113343 (or 2113340 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 19020033 is about 4361.1962808385. The cubic root of 19020033 is about 266.9339145454.

The spelling of 19020033 in words is "nineteen million, twenty thousand, thirty-three".

Divisors: 1 3 9 2113337 6340011 19020033