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8149039428 = 2231947937457
BaseRepresentation
bin1111001011011100…
…00111100101000100
3210000220212002120010
413211232013211010
5113142123230203
63424342110220
7405640456305
oct74556074504
923026762503
108149039428
113501a13a32
1216b511b370
139cb396a2a
145743c27ac
1532a63a303
hex1e5b87944

8149039428 has 48 divisors (see below), whose sum is σ = 20022045120. Its totient is φ = 2572498944.

The previous prime is 8149039427. The next prime is 8149039477. The reversal of 8149039428 is 8249309418.

It is not an unprimeable number, because it can be changed into a prime (8149039427) 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 15 ways as a sum of consecutive naturals, for example, 1089076 + ... + 1096532.

It is an arithmetic number, because the mean of its divisors is an integer number (417125940).

Almost surely, 28149039428 is an apocalyptic number.

It is an amenable number.

8149039428 is an abundant number, since it is smaller than the sum of its proper divisors (11873005692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8149039428 is a wasteful number, since it uses less digits than its factorization.

8149039428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12276 (or 12274 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 8149039428 is about 90272.0301533094. The cubic root of 8149039428 is about 2012.3436132121.

The spelling of 8149039428 in words is "eight billion, one hundred forty-nine million, thirty-nine thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 4793 7457 9586 14379 14914 19172 22371 28758 29828 44742 57516 89484 91067 141683 182134 273201 283366 364268 425049 546402 566732 850098 1092804 1700196 35741401 71482802 107224203 142965604 214448406 428896812 679086619 1358173238 2037259857 2716346476 4074519714 8149039428