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30308136900 = 22352195317217
BaseRepresentation
bin11100001110100000…
…010111011111000100
32220020020002212201220
4130032200113133010
5444032340340100
621531240320340
72122030625106
oct341640273704
986206085656
1030308136900
1111943175928
125a5a1730b0
132b20181722
141677339576
15bc5be3aa0
hex70e8177c4

30308136900 has 72 divisors (see below), whose sum is σ = 92306904480. Its totient is φ = 7656791040.

The previous prime is 30308136853. The next prime is 30308136931. The reversal of 30308136900 is 963180303.

It is a super-2 number, since 2×303081369002 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2652909 + ... + 2664308.

It is an arithmetic number, because the mean of its divisors is an integer number (1282040340).

Almost surely, 230308136900 is an apocalyptic number.

30308136900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30308136900 is an abundant number, since it is smaller than the sum of its proper divisors (61998767580).

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

30308136900 is a wasteful number, since it uses less digits than its factorization.

30308136900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5317253 (or 5317246 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The spelling of 30308136900 in words is "thirty billion, three hundred eight million, one hundred thirty-six thousand, nine hundred".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 25 30 38 50 57 60 75 76 95 100 114 150 190 228 285 300 380 475 570 950 1140 1425 1900 2850 5700 5317217 10634434 15951651 21268868 26586085 31903302 53172170 63806604 79758255 101027123 106344340 132930425 159516510 202054246 265860850 303081369 319033020 398791275 404108492 505135615 531721700 606162738 797582550 1010271230 1212325476 1515406845 1595165100 2020542460 2525678075 3030813690 5051356150 6061627380 7577034225 10102712300 15154068450 30308136900