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1890251125 = 5379722271
BaseRepresentation
bin111000010101010…
…1111000101110101
311212201211201001221
41300222233011311
512332401014000
6511322350341
764561604140
oct16052570565
94781751057
101890251125
1188aaa7714
1244905b3b1
132417cc3b9
1413d08b057
15b0e3461a
hex70aaf175

1890251125 has 32 divisors (see below), whose sum is σ = 2723954688. Its totient is φ = 1282752000.

The previous prime is 1890251093. The next prime is 1890251141. The reversal of 1890251125 is 5211520981.

It is not a de Polignac number, because 1890251125 - 25 = 1890251093 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 73740 + ... + 96010.

It is an arithmetic number, because the mean of its divisors is an integer number (85123584).

Almost surely, 21890251125 is an apocalyptic number.

It is an amenable number.

1890251125 is a deficient number, since it is larger than the sum of its proper divisors (833703563).

1890251125 is an equidigital number, since it uses as much as digits as its factorization.

1890251125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22390 (or 22380 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 34.

The square root of 1890251125 is about 43477.0183545284. The cubic root of 1890251125 is about 1236.4403471879.

The spelling of 1890251125 in words is "one billion, eight hundred ninety million, two hundred fifty-one thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 97 125 175 485 679 875 2425 3395 12125 16975 22271 84875 111355 155897 556775 779485 2160287 2783875 3897425 10801435 15122009 19487125 54007175 75610045 270035875 378050225 1890251125