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1930243030 = 25238392361
BaseRepresentation
bin111001100001101…
…0010101111010110
311222112002111122121
41303003102233112
512423120234110
6515311450154
765555536462
oct16303225726
94875074577
101930243030
11900632181
1245a52695a
13249b92351
141444db4a2
15b46d3cda
hex730d2bd6

1930243030 has 16 divisors (see below), whose sum is σ = 3625500384. Its totient is φ = 738527680.

The previous prime is 1930243013. The next prime is 1930243031. The reversal of 1930243030 is 303420391.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1930242986 and 1930243004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930243031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4195951 + ... + 4196410.

It is an arithmetic number, because the mean of its divisors is an integer number (226593774).

Almost surely, 21930243030 is an apocalyptic number.

1930243030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1930243030 is a deficient number, since it is larger than the sum of its proper divisors (1695257354).

1930243030 is a wasteful number, since it uses less digits than its factorization.

1930243030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8392391.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 1930243030 is about 43934.5311799273. The cubic root of 1930243030 is about 1245.0993248822.

The spelling of 1930243030 in words is "one billion, nine hundred thirty million, two hundred forty-three thousand, thirty".

Divisors: 1 2 5 10 23 46 115 230 8392361 16784722 41961805 83923610 193024303 386048606 965121515 1930243030