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304057 = 13191231
BaseRepresentation
bin1001010001110111001
3120110002101
41022032321
534212212
610303401
72404315
oct1121671
9513071
10304057
11198496
12127b61
13a8520
147cb45
1560157
hex4a3b9

304057 has 8 divisors (see below), whose sum is σ = 344960. Its totient is φ = 265680.

The previous prime is 304049. The next prime is 304063. The reversal of 304057 is 750403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 304057 - 23 = 304049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a deceptive number, since it divides R304056.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (304067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369 + ... + 862.

It is an arithmetic number, because the mean of its divisors is an integer number (43120).

2304057 is an apocalyptic number.

It is an amenable number.

304057 is a deficient number, since it is larger than the sum of its proper divisors (40903).

304057 is a wasteful number, since it uses less digits than its factorization.

304057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 304057 is about 551.4136378437. The cubic root of 304057 is about 67.2437103426.

The spelling of 304057 in words is "three hundred four thousand, fifty-seven".

Divisors: 1 13 19 247 1231 16003 23389 304057