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30211011122020 = 22523349113203767
BaseRepresentation
bin1101101111010000011001…
…00101100001001101100100
310221222010220022100101202121
412313220030211201031210
512424434122321401040
6144130425155515324
76235450006340611
oct667501445411544
9127863808311677
1030211011122020
1196984661a71a3
12347b11a5b8b44
1313b1b69a7b231
147663139d5508
15375ccec87c4a
hex1b7a0c961364

30211011122020 has 48 divisors (see below), whose sum is σ = 63845182896768. Its totient is φ = 12008032951040.

The previous prime is 30211011122009. The next prime is 30211011122029. The reversal of 30211011122020 is 2022111011203.

It is a super-2 number, since 2×302110111220202 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30211011121985 and 30211011122003.

It is not an unprimeable number, because it can be changed into a prime (30211011122029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4313824 + ... + 8889943.

It is an arithmetic number, because the mean of its divisors is an integer number (1330107977016).

Almost surely, 230211011122020 is an apocalyptic number.

It is an amenable number.

30211011122020 is an abundant number, since it is smaller than the sum of its proper divisors (33634171774748).

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

30211011122020 is a wasteful number, since it uses less digits than its factorization.

30211011122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13204500 (or 13204498 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 30211011122020 its reverse (2022111011203), we get a palindrome (32233122133223).

The spelling of 30211011122020 in words is "thirty trillion, two hundred eleven billion, eleven million, one hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 233 466 491 932 982 1165 1964 2330 2455 4660 4910 9820 114403 228806 457612 572015 1144030 2288060 13203767 26407534 52815068 66018835 132037670 264075340 3076477711 6152955422 6483049597 12305910844 12966099194 15382388555 25932198388 30764777110 32415247985 61529554220 64830495970 129660991940 1510550556101 3021101112202 6042202224404 7552752780505 15105505561010 30211011122020