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6280320420 = 223851119229
BaseRepresentation
bin1011101100101011…
…00001010110100100
3121012200112100000000
411312111201112210
5100330230223140
62515105021300
7311426562033
oct56625412644
917180470000
106280320420
112733093760
121273324830
1379119623a
1443813c71a
1526b55aa30
hex1765615a4

6280320420 has 432 divisors, whose sum is σ = 22815374400. Its totient is φ = 1436071680.

The previous prime is 6280320367. The next prime is 6280320457. The reversal of 6280320420 is 240230826.

6280320420 is a `hidden beast` number, since 628 + 0 + 32 + 0 + 4 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 27424866 + ... + 27425094.

Almost surely, 26280320420 is an apocalyptic number.

6280320420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6280320420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11407687200).

6280320420 is an abundant number, since it is smaller than the sum of its proper divisors (16535053980).

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

6280320420 is a wasteful number, since it uses less digits than its factorization.

6280320420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 6280320420 is about 79248.4726666704. The cubic root of 6280320420 is about 1844.9896489604.

The spelling of 6280320420 in words is "six billion, two hundred eighty million, three hundred twenty thousand, four hundred twenty".