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30028569450 = 23521123976147
BaseRepresentation
bin11011111101110101…
…111001101101101010
32212111202001101021220
4123331311321231222
5442444303210300
621443412242510
72112064425465
oct337565715552
985452041256
1030028569450
111180a387750
1259a0610436
132aa7288bb9
14164c1642dc
15bab3bdda0
hex6fdd79b6a

30028569450 has 96 divisors (see below), whose sum is σ = 81581921280. Its totient is φ = 7249099200.

The previous prime is 30028569449. The next prime is 30028569481. The reversal of 30028569450 is 5496582003.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 356277 + ... + 432423.

It is an arithmetic number, because the mean of its divisors is an integer number (849811680).

Almost surely, 230028569450 is an apocalyptic number.

30028569450 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 30028569450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40790960640).

30028569450 is an abundant number, since it is smaller than the sum of its proper divisors (51553351830).

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

30028569450 is a wasteful number, since it uses less digits than its factorization.

30028569450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76412 (or 76407 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 30028569450 in words is "thirty billion, twenty-eight million, five hundred sixty-nine thousand, four hundred fifty".

Divisors: 1 2 3 5 6 10 11 15 22 25 30 33 50 55 66 75 110 150 165 239 275 330 478 550 717 825 1195 1434 1650 2390 2629 3585 5258 5975 7170 7887 11950 13145 15774 17925 26290 35850 39435 65725 76147 78870 131450 152294 197175 228441 380735 394350 456882 761470 837617 1142205 1675234 1903675 2284410 2512851 3807350 4188085 5025702 5711025 8376170 11422050 12564255 18199133 20940425 25128510 36398266 41880850 54597399 62821275 90995665 109194798 125642550 181991330 200190463 272986995 400380926 454978325 545973990 600571389 909956650 1000952315 1201142778 1364934975 2001904630 2729869950 3002856945 5004761575 6005713890 10009523150 15014284725 30028569450