[go: up one dir, main page]

Search a number
-
+
30090470 = 255475501
BaseRepresentation
bin111001011001…
…0010011100110
32002121202100212
41302302103212
530200343340
62552535422
7513523214
oct162622346
962552325
1030090470
1115a92463
12a0b1572
136307217
143dd3cb4
152995a65
hex1cb24e6

30090470 has 16 divisors (see below), whose sum is σ = 54271728. Its totient is φ = 12012000.

The previous prime is 30090461. The next prime is 30090517. The reversal of 30090470 is 7409003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2720 + ... + 8220.

It is an arithmetic number, because the mean of its divisors is an integer number (3391983).

Almost surely, 230090470 is an apocalyptic number.

30090470 is a deficient number, since it is larger than the sum of its proper divisors (24181258).

30090470 is a wasteful number, since it uses less digits than its factorization.

30090470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 30090470 is about 5485.4781013144. The cubic root of 30090470 is about 311.0352830598.

Adding to 30090470 its reverse (7409003), we get a palindrome (37499473).

The spelling of 30090470 in words is "thirty million, ninety thousand, four hundred seventy".

Divisors: 1 2 5 10 547 1094 2735 5470 5501 11002 27505 55010 3009047 6018094 15045235 30090470