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6128490920 = 235831845931
BaseRepresentation
bin1011011010100100…
…10101100110101000
3120211002211121002012
411231102111212220
5100022343202140
62452042455052
7304604212316
oct55522254650
916732747065
106128490920
112665411a32
121230504488
137688a66b6
14421cd90b6
1525d069265
hex16d4959a8

6128490920 has 32 divisors (see below), whose sum is σ = 13955245920. Its totient is φ = 2421860160.

The previous prime is 6128490911. The next prime is 6128490937. The reversal of 6128490920 is 290948216.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919646 + ... + 926285.

It is an arithmetic number, because the mean of its divisors is an integer number (436101435).

Almost surely, 26128490920 is an apocalyptic number.

It is an amenable number.

6128490920 is an abundant number, since it is smaller than the sum of its proper divisors (7826755000).

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

6128490920 is a wasteful number, since it uses less digits than its factorization.

6128490920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846025 (or 1846021 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 6128490920 is about 78284.6787053508. The cubic root of 6128490920 is about 1830.0003901778. Note that the first 3 decimals are identical.

The spelling of 6128490920 in words is "six billion, one hundred twenty-eight million, four hundred ninety thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 83 166 332 415 664 830 1660 3320 1845931 3691862 7383724 9229655 14767448 18459310 36918620 73837240 153212273 306424546 612849092 766061365 1225698184 1532122730 3064245460 6128490920