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306180004 = 221326732
BaseRepresentation
bin10010001111111…
…110111110100100
3210100010120000011
4102033332332210
51111340230004
650214300004
710405326034
oct2217767644
9710116004
10306180004
11147915629
1286657604
134b582a00
142c9418c4
151bd30004
hex123fefa4

306180004 has 27 divisors (see below), whose sum is σ = 581065443. Its totient is φ = 141103872.

The previous prime is 306180001. The next prime is 306180023. The reversal of 306180004 is 400081603.

The square root of 306180004 is 17498.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 88322404 + 217857600 = 9398^2 + 14760^2 .

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (306180001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 454612 + ... + 455284.

Almost surely, 2306180004 is an apocalyptic number.

306180004 is the 17498-th square number.

It is an amenable number.

306180004 is a deficient number, since it is larger than the sum of its proper divisors (274885439).

306180004 is an equidigital number, since it uses as much as digits as its factorization.

306180004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The cubic root of 306180004 is about 673.9985177848.

Multiplying 306180004 by its product of nonzero digits (576), we get a square (176359682304 = 4199522).

The spelling of 306180004 in words is "three hundred six million, one hundred eighty thousand, four".

Divisors: 1 2 4 13 26 52 169 338 673 676 1346 2692 8749 17498 34996 113737 227474 452929 454948 905858 1811716 5888077 11776154 23552308 76545001 153090002 306180004