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225492480 = 293259787
BaseRepresentation
bin11010111000010…
…11111000000000
3120201022012112100
431130023320000
5430211224410
634213030400
75405440323
oct1534137000
9521265470
10225492480
11106314924
1263625400
1337941705
1421d3a7ba
1514be28c0
hexd70be00

225492480 has 120 divisors (see below), whose sum is σ = 781023672. Its totient is φ = 60125184.

The previous prime is 225492479. The next prime is 225492503. The reversal of 225492480 is 84294522.

225492480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18147 + ... + 27933.

Almost surely, 2225492480 is an apocalyptic number.

225492480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225492480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390511836).

225492480 is an abundant number, since it is smaller than the sum of its proper divisors (555531192).

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

225492480 is an equidigital number, since it uses as much as digits as its factorization.

225492480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9816 (or 9797 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 225492480 is about 15016.4070269822. The cubic root of 225492480 is about 608.6636336426.

The spelling of 225492480 in words is "two hundred twenty-five million, four hundred ninety-two thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 256 288 320 360 384 480 512 576 640 720 768 960 1152 1280 1440 1536 1920 2304 2560 2880 3840 4608 5760 7680 9787 11520 19574 23040 29361 39148 48935 58722 78296 88083 97870 117444 146805 156592 176166 195740 234888 293610 313184 352332 391480 440415 469776 587220 626368 704664 782960 880830 939552 1174440 1252736 1409328 1565920 1761660 1879104 2348880 2505472 2818656 3131840 3523320 3758208 4697760 5010944 5637312 6263680 7046640 7516416 9395520 11274624 12527360 14093280 15032832 18791040 22549248 25054720 28186560 37582080 45098496 56373120 75164160 112746240 225492480