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30053244 = 22313383503
BaseRepresentation
bin111001010100…
…1001101111100
32002112212022010
41302221031330
530143200434
62552051220
7513306534
oct162511574
962485263
1030053244
1115a674a1
12a093b10
1362c32b0
143dc44c4
1529899e9
hex1ca937c

30053244 has 48 divisors (see below), whose sum is σ = 75866112. Its totient is φ = 9204672.

The previous prime is 30053209. The next prime is 30053267. The reversal of 30053244 is 44235003.

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 30053244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59497 + ... + 59999.

It is an arithmetic number, because the mean of its divisors is an integer number (1580544).

Almost surely, 230053244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30053244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37933056).

30053244 is an abundant number, since it is smaller than the sum of its proper divisors (45812868).

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

30053244 is a wasteful number, since it uses less digits than its factorization.

30053244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 30053244 is about 5482.0839103392. The cubic root of 30053244 is about 310.9069658273.

Adding to 30053244 its reverse (44235003), we get a palindrome (74288247).

The spelling of 30053244 in words is "thirty million, fifty-three thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 383 503 766 1006 1149 1509 1532 2012 2298 3018 4596 4979 6036 6539 9958 13078 14937 19617 19916 26156 29874 39234 59748 78468 192649 385298 577947 770596 1155894 2311788 2504437 5008874 7513311 10017748 15026622 30053244