Search a number
-
+
404200030 = 25136150971
BaseRepresentation
bin11000000101111…
…001101001011110
31001011120111012111
4120011321221132
51311433400110
6104035224234
713005433513
oct3005715136
91034514174
10404200030
11198184513
12b344807a
1365982220
143b97930a
1525742e8a
hex18179a5e

404200030 has 32 divisors (see below), whose sum is σ = 796386528. Its totient is φ = 146793600.

The previous prime is 404200019. The next prime is 404200033. The reversal of 404200030 is 30002404.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404200033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17556 + ... + 33415.

It is an arithmetic number, because the mean of its divisors is an integer number (24887079).

Almost surely, 2404200030 is an apocalyptic number.

404200030 is a deficient number, since it is larger than the sum of its proper divisors (392186498).

404200030 is a wasteful number, since it uses less digits than its factorization.

404200030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51052.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 404200030 is about 20104.7265586976. The cubic root of 404200030 is about 739.3761664775.

Adding to 404200030 its reverse (30002404), we get a palindrome (434202434).

The spelling of 404200030 in words is "four hundred four million, two hundred thousand, thirty".

Divisors: 1 2 5 10 13 26 61 65 122 130 305 610 793 1586 3965 7930 50971 101942 254855 509710 662623 1325246 3109231 3313115 6218462 6626230 15546155 31092310 40420003 80840006 202100015 404200030