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30054560 = 255238167
BaseRepresentation
bin111001010100…
…1100010100000
32002112221002212
41302221202200
530143221220
62552101252
7513313424
oct162514240
962487085
1030054560
1115a68488
12a094828
1362c3a83
143dc4b84
15298a0c5
hex1ca98a0

30054560 has 48 divisors (see below), whose sum is σ = 74100096. Its totient is φ = 11497728.

The previous prime is 30054533. The next prime is 30054569. The reversal of 30054560 is 6545003.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (30054569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404 + ... + 7763.

It is an arithmetic number, because the mean of its divisors is an integer number (1543752).

Almost surely, 230054560 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 30054560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37050048).

30054560 is an abundant number, since it is smaller than the sum of its proper divisors (44045536).

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

30054560 is a wasteful number, since it uses less digits than its factorization.

30054560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8205 (or 8197 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30054560 is about 5482.2039363745. The cubic root of 30054560 is about 310.9115038576.

Adding to 30054560 its reverse (6545003), we get a palindrome (36599563).

The spelling of 30054560 in words is "thirty million, fifty-four thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 80 92 115 160 184 230 368 460 736 920 1840 3680 8167 16334 32668 40835 65336 81670 130672 163340 187841 261344 326680 375682 653360 751364 939205 1306720 1502728 1878410 3005456 3756820 6010912 7513640 15027280 30054560