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1849000004 = 221494217369
BaseRepresentation
bin110111000110101…
…1000000001000100
311202212012221011122
41232031120001010
512241321000004
6503250253112
763551145365
oct15615300104
94685187148
101849000004
11869792085
12437287198
132360b8257
141377cdb6c
15ac4d6cbe
hex6e358044

1849000004 has 24 divisors (see below), whose sum is σ = 3265647000. Its totient is φ = 915989760.

The previous prime is 1849000003. The next prime is 1849000033. The reversal of 1849000004 is 4000009481.

It can be written as a sum of positive squares in 4 ways, for example, as 8761600 + 1840238404 = 2960^2 + 42898^2 .

It is not an unprimeable number, because it can be changed into a prime (1849000003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247232 + ... + 254600.

It is an arithmetic number, because the mean of its divisors is an integer number (136068625).

Almost surely, 21849000004 is an apocalyptic number.

It is an amenable number.

1849000004 is a deficient number, since it is larger than the sum of its proper divisors (1416646996).

1849000004 is a wasteful number, since it uses less digits than its factorization.

1849000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943 (or 7941 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 1849000004 is about 43000.0000465116. Note that the first 4 decimals coincide. The cubic root of 1849000004 is about 1227.3797978372.

Adding to 1849000004 its reverse (4000009481), we get a palindrome (5849009485).

The spelling of 1849000004 in words is "one billion, eight hundred forty-nine million, four", and thus it is an aban number.

Divisors: 1 2 4 149 298 421 596 842 1684 7369 14738 29476 62729 125458 250916 1097981 2195962 3102349 4391924 6204698 12409396 462250001 924500002 1849000004