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305301428 = 22367207971
BaseRepresentation
bin10010001100101…
…000011110110100
3210021110220211022
4102030220132310
51111124121203
650143400312
710365006425
oct2214503664
9707426738
10305301428
11147375533
12862b3098
134b335b43
142c79364c
151bc09a38
hex123287b4

305301428 has 12 divisors (see below), whose sum is σ = 535735872. Its totient is φ = 152234040.

The previous prime is 305301413. The next prime is 305301431. The reversal of 305301428 is 824103503.

It is a junction number, because it is equal to n+sod(n) for n = 305301397 and 305301406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102518 + ... + 105453.

It is an arithmetic number, because the mean of its divisors is an integer number (44644656).

Almost surely, 2305301428 is an apocalyptic number.

It is an amenable number.

305301428 is a deficient number, since it is larger than the sum of its proper divisors (230434444).

305301428 is a wasteful number, since it uses less digits than its factorization.

305301428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208342 (or 208340 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 305301428 is about 17472.8769239642. The cubic root of 305301428 is about 673.3532261112.

The spelling of 305301428 in words is "three hundred five million, three hundred one thousand, four hundred twenty-eight".

Divisors: 1 2 4 367 734 1468 207971 415942 831884 76325357 152650714 305301428