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303428 = 22312447
BaseRepresentation
bin1001010000101000100
3120102020002
41022011010
534202203
610300432
72402426
oct1120504
9512202
10303428
11197a74
12127718
13a8158
147c816
155ed88
hex4a144

303428 has 12 divisors (see below), whose sum is σ = 548352. Its totient is φ = 146760.

The previous prime is 303421. The next prime is 303431. The reversal of 303428 is 824303.

It is a d-powerful number, because it can be written as 34 + 0 + 49 + 35 + 213 + 85 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 303428.

It is not an unprimeable number, because it can be changed into a prime (303421) by changing a digit.

303428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100 + ... + 1347.

It is an arithmetic number, because the mean of its divisors is an integer number (45696).

2303428 is an apocalyptic number.

It is an amenable number.

303428 is a deficient number, since it is larger than the sum of its proper divisors (244924).

303428 is a wasteful number, since it uses less digits than its factorization.

303428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482 (or 2480 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 303428 is about 550.8429903339. The cubic root of 303428 is about 67.1973095106.

The spelling of 303428 in words is "three hundred three thousand, four hundred twenty-eight".

Divisors: 1 2 4 31 62 124 2447 4894 9788 75857 151714 303428