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304976 = 2472389
BaseRepresentation
bin1001010011101010000
3120111100102
41022131100
534224401
610311532
72410100
oct1123520
9514312
10304976
11199151
121285a8
13a8a79
147d200
156056b
hex4a750

304976 has 30 divisors (see below), whose sum is σ = 689130. Its totient is φ = 130368.

The previous prime is 304961. The next prime is 304979. The reversal of 304976 is 679403.

It can be written as a sum of positive squares in only one way, i.e., 226576 + 78400 = 476^2 + 280^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 590 + ... + 978.

It is an arithmetic number, because the mean of its divisors is an integer number (22971).

2304976 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 304976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344565).

304976 is an abundant number, since it is smaller than the sum of its proper divisors (384154).

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

304976 is a wasteful number, since it uses less digits than its factorization.

304976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 304976 is about 552.2463218528. The cubic root of 304976 is about 67.3113893354.

It can be divided in two parts, 30497 and 6, that added together give a palindrome (30503).

The spelling of 304976 in words is "three hundred four thousand, nine hundred seventy-six".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 389 392 778 784 1556 2723 3112 5446 6224 10892 19061 21784 38122 43568 76244 152488 304976