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228805830450 = 23252225492
BaseRepresentation
bin1101010100010111100…
…0111110011100110010
3210212120212112111012200
43111011320332130302
512222043243033300
6253040103004030
722350010316661
oct3250570763462
9725525474180
10228805830450
1189043a20a4a
1238416739616
1318765181872
14b107ab6dd8
155e42315200
hex3545e3e732

228805830450 has 54 divisors (see below), whose sum is σ = 614752260759. Its totient is φ = 61012182240.

The previous prime is 228805830443. The next prime is 228805830497. The reversal of 228805830450 is 54038508822.

228805830450 is a `hidden beast` number, since 2 + 28 + 8 + 0 + 583 + 0 + 45 + 0 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 216384059241 + 12421771209 = 465171^2 + 111453^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=338235.

It is a super-3 number, since 3×2288058304503 (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 228805830396 and 228805830405.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10135776 + ... + 10158324.

Almost surely, 2228805830450 is an apocalyptic number.

228805830450 is an abundant number, since it is smaller than the sum of its proper divisors (385946430309).

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

228805830450 is an frugal number, since it uses more digits than its factorization.

228805830450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45116 (or 22559 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 228805830450 in words is "two hundred twenty-eight billion, eight hundred five million, eight hundred thirty thousand, four hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 150 225 450 22549 45098 67647 112745 135294 202941 225490 338235 405882 563725 676470 1014705 1127450 1691175 2029410 3382350 5073525 10147050 508457401 1016914802 1525372203 2542287005 3050744406 4576116609 5084574010 7626861015 9152233218 12711435025 15253722030 22880583045 25422870050 38134305075 45761166090 76268610150 114402915225 228805830450