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6286420 = 225783541
BaseRepresentation
bin10111111110110001010100
3102211101100101
4113332301110
53102131140
6342423444
7104301520
oct27766124
912741311
106286420
113604098
122131b84
1313c149a
14b98d80
1584299a
hex5fec54

6286420 has 48 divisors (see below), whose sum is σ = 15297408. Its totient is φ = 2125440.

The previous prime is 6286403. The next prime is 6286433. The reversal of 6286420 is 246826.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11350 + ... + 11890.

It is an arithmetic number, because the mean of its divisors is an integer number (318696).

Almost surely, 26286420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6286420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7648704).

6286420 is an abundant number, since it is smaller than the sum of its proper divisors (9010988).

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

6286420 is a wasteful number, since it uses less digits than its factorization.

6286420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 6286420 is about 2507.2734194738. The cubic root of 6286420 is about 184.5586753349.

The spelling of 6286420 in words is "six million, two hundred eighty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 83 140 166 332 415 541 581 830 1082 1162 1660 2164 2324 2705 2905 3787 5410 5810 7574 10820 11620 15148 18935 37870 44903 75740 89806 179612 224515 314321 449030 628642 898060 1257284 1571605 3143210 6286420