Search a number
-
+
30544090 = 253054409
BaseRepresentation
bin111010010000…
…1000011011010
32010110210121121
41310201003122
530304402330
63010355454
7520422553
oct164410332
963423547
1030544090
1116272255
12a28bb8a
136435835
1440b132a
152a3517a
hex1d210da

30544090 has 8 divisors (see below), whose sum is σ = 54979380. Its totient is φ = 12217632.

The previous prime is 30544067. The next prime is 30544097. The reversal of 30544090 is 9044503.

It can be written as a sum of positive squares in 2 ways, for example, as 30107169 + 436921 = 5487^2 + 661^2 .

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 (30544097) 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, 1527195 + ... + 1527214.

Almost surely, 230544090 is an apocalyptic number.

30544090 is a deficient number, since it is larger than the sum of its proper divisors (24435290).

30544090 is a wasteful number, since it uses less digits than its factorization.

30544090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054416.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30544090 is about 5526.6707880966. The cubic root of 30544090 is about 312.5904676741.

Adding to 30544090 its reverse (9044503), we get a palindrome (39588593).

The spelling of 30544090 in words is "thirty million, five hundred forty-four thousand, ninety".

Divisors: 1 2 5 10 3054409 6108818 15272045 30544090