Search a number
-
+
30654490 = 253065449
BaseRepresentation
bin111010011110…
…0000000011010
32010200102001111
41310330000122
530321420430
63013010534
7521362456
oct164740032
963612044
1030654490
1116338199
12a323a4a
136473b69
1440dd666
152a57c2a
hex1d3c01a

30654490 has 8 divisors (see below), whose sum is σ = 55178100. Its totient is φ = 12261792.

The previous prime is 30654457. The next prime is 30654493. The reversal of 30654490 is 9445603.

It can be written as a sum of positive squares in 2 ways, for example, as 30614089 + 40401 = 5533^2 + 201^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30654493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1532715 + ... + 1532734.

Almost surely, 230654490 is an apocalyptic number.

30654490 is a deficient number, since it is larger than the sum of its proper divisors (24523610).

30654490 is a wasteful number, since it uses less digits than its factorization.

30654490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065456.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 30654490 is about 5536.6497089847. The cubic root of 30654490 is about 312.9666287442.

The spelling of 30654490 in words is "thirty million, six hundred fifty-four thousand, four hundred ninety".

Divisors: 1 2 5 10 3065449 6130898 15327245 30654490