Search a number
-
+
30312230232120 = 23352111197165491
BaseRepresentation
bin1101110010001100111011…
…01101110010000000111000
310222022211011102221221200020
412321012131231302000320
512433113421414411440
6144245125112410440
76245662215516144
oct671063555620070
9128284142857606
1030312230232120
119727387800801
1234968686a6a20
1313bb57b0134a5
1476b19691c224
153787560353d0
hex1b919db72038

30312230232120 has 64 divisors (see below), whose sum is σ = 91367670349440. Its totient is φ = 8044952092800.

The previous prime is 30312230232079. The next prime is 30312230232223. The reversal of 30312230232120 is 2123203221303.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 598557426 + ... + 598608065.

It is an arithmetic number, because the mean of its divisors is an integer number (1427619849210).

Almost surely, 230312230232120 is an apocalyptic number.

30312230232120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30312230232120 is an abundant number, since it is smaller than the sum of its proper divisors (61055440117320).

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

30312230232120 is a wasteful number, since it uses less digits than its factorization.

30312230232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197165716 (or 1197165712 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 30312230232120 its reverse (2123203221303), we get a palindrome (32435433453423).

The spelling of 30312230232120 in words is "thirty trillion, three hundred twelve billion, two hundred thirty million, two hundred thirty-two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 211 422 633 844 1055 1266 1688 2110 2532 3165 4220 5064 6330 8440 12660 25320 1197165491 2394330982 3591496473 4788661964 5985827455 7182992946 9577323928 11971654910 14365985892 17957482365 23943309820 28731971784 35914964730 47886619640 71829929460 143659858920 252601918601 505203837202 757805755803 1010407674404 1263009593005 1515611511606 2020815348808 2526019186010 3031223023212 3789028779015 5052038372020 6062446046424 7578057558030 10104076744040 15156115116060 30312230232120