Search a number
-
+
30544350 = 23521571297
BaseRepresentation
bin111010010000…
…1000111011110
32010110210222020
41310201013132
530304404400
63010401010
7520423404
oct164410736
963423866
1030544350
1116272471
12a290166
1364359a5
1440b1474
152a352a0
hex1d211de

30544350 has 48 divisors (see below), whose sum is σ = 76291248. Its totient is φ = 8087040.

The previous prime is 30544333. The next prime is 30544357. The reversal of 30544350 is 5344503.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30544350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30544357) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 22902 + ... + 24198.

It is an arithmetic number, because the mean of its divisors is an integer number (1589401).

Almost surely, 230544350 is an apocalyptic number.

30544350 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30544350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38145624).

30544350 is an abundant number, since it is smaller than the sum of its proper divisors (45746898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30544350 is a wasteful number, since it uses less digits than its factorization.

30544350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469 (or 1464 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 30544350 is about 5526.6943103450. The cubic root of 30544350 is about 312.5913546246.

Adding to 30544350 its reverse (5344503), we get a palindrome (35888853).

The spelling of 30544350 in words is "thirty million, five hundred forty-four thousand, three hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 157 314 471 785 942 1297 1570 2355 2594 3891 3925 4710 6485 7782 7850 11775 12970 19455 23550 32425 38910 64850 97275 194550 203629 407258 610887 1018145 1221774 2036290 3054435 5090725 6108870 10181450 15272175 30544350