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1030944890 = 251095991579
BaseRepresentation
bin111101011100101…
…111100001111010
32122211220102112002
4331130233201322
54102410214030
6250144421002
734355613143
oct7534574172
92584812462
101030944890
11489a3a178
12249317762
13135783281
149acc4aca
1560795245
hex3d72f87a

1030944890 has 32 divisors (see below), whose sum is σ = 1877040000. Its totient is φ = 407654208.

The previous prime is 1030944869. The next prime is 1030944899. The reversal of 1030944890 is 984490301.

1030944890 = 1502 + 1512 + ... + 14572.

It is a super-2 number, since 2×10309448902 = 2125694732434224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1030944899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652121 + ... + 653699.

It is an arithmetic number, because the mean of its divisors is an integer number (58657500).

Almost surely, 21030944890 is an apocalyptic number.

1030944890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1030944890 is a deficient number, since it is larger than the sum of its proper divisors (846095110).

1030944890 is a wasteful number, since it uses less digits than its factorization.

1030944890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1030944890 is about 32108.3305389738. The cubic root of 1030944890 is about 1010.2103571260.

The spelling of 1030944890 in words is "one billion, thirty million, nine hundred forty-four thousand, eight hundred ninety".

Divisors: 1 2 5 10 109 218 545 599 1090 1198 1579 2995 3158 5990 7895 15790 65291 130582 172111 326455 344222 652910 860555 945821 1721110 1891642 4729105 9458210 103094489 206188978 515472445 1030944890