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301680428 = 22710774301
BaseRepresentation
bin10001111110110…
…100011100101100
3210000122221202012
4101332310130230
51104212233203
645534020352
710322145530
oct2176643454
9700587665
10301680428
11145321a75
12850476b8
134a66893a
142c0cdbc0
151b741bd8
hex11fb472c

301680428 has 12 divisors (see below), whose sum is σ = 603360912. Its totient is φ = 129291600.

The previous prime is 301680403. The next prime is 301680493. The reversal of 301680428 is 824086103.

301680428 is an admirable number.

It is a super-2 number, since 2×3016804282 = 182022161276526368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 301680394 and 301680403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5387123 + ... + 5387178.

It is an arithmetic number, because the mean of its divisors is an integer number (50280076).

Almost surely, 2301680428 is an apocalyptic number.

It is an amenable number.

301680428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

301680428 is a wasteful number, since it uses less digits than its factorization.

301680428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10774312 (or 10774310 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 301680428 is about 17368.9501121973. The cubic root of 301680428 is about 670.6805500531.

The spelling of 301680428 in words is "three hundred one million, six hundred eighty thousand, four hundred twenty-eight".

Divisors: 1 2 4 7 14 28 10774301 21548602 43097204 75420107 150840214 301680428