Search a number
-
+
30257750558280 = 2335736021131617
BaseRepresentation
bin1101110000100111011100…
…11110010100011001001000
310222010121112122211202210110
412320103232132110121020
512431220333120331110
6144204115124114320
76242023160110620
oct670235636243110
9128117478752713
1030257750558280
119706270410473
1234881a35359a0
1313b63a81659ab
147686a9293880
15377118269a20
hex1b84ee794648

30257750558280 has 64 divisors (see below), whose sum is σ = 103740859059840. Its totient is φ = 6916057270272.

The previous prime is 30257750558267. The next prime is 30257750558309. The reversal of 30257750558280 is 8285505775203.

It is a self number, because there is not a number n which added to its sum of digits gives 30257750558280.

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, 18010564969 + ... + 18010566648.

It is an arithmetic number, because the mean of its divisors is an integer number (1620950922810).

Almost surely, 230257750558280 is an apocalyptic number.

30257750558280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30257750558280 is an abundant number, since it is smaller than the sum of its proper divisors (73483108501560).

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

30257750558280 is a wasteful number, since it uses less digits than its factorization.

30257750558280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36021131638 (or 36021131634 counting only the distinct ones).

The product of its (nonzero) digits is 23520000, while the sum is 57.

The spelling of 30257750558280 in words is "thirty trillion, two hundred fifty-seven billion, seven hundred fifty million, five hundred fifty-eight thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 36021131617 72042263234 108063394851 144084526468 180105658085 216126789702 252147921319 288169052936 360211316170 432253579404 504295842638 540316974255 720422632340 756443763957 864507158808 1008591685276 1080633948510 1260739606595 1440845264680 1512887527914 2017183370552 2161267897020 2521479213190 3025775055828 3782218819785 4322535794040 5042958426380 6051550111656 7564437639570 10085916852760 15128875279140 30257750558280