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30111232230 = 232523139104651
BaseRepresentation
bin11100000010110001…
…001111000011100110
32212201111121002022100
4130002301033003212
5443131433412410
621455524112530
72114120152032
oct340261170346
985644532270
1030111232230
11118520074a2
125a04235746
132abb43c2a1
1416591211c2
15bb379b8c0
hex702c4f0e6

30111232230 has 96 divisors (see below), whose sum is σ = 82281588480. Its totient is φ = 7625217600.

The previous prime is 30111232223. The next prime is 30111232267. The reversal of 30111232230 is 3223211103.

30111232230 is a `hidden beast` number, since 301 + 1 + 12 + 322 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

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, 235405 + ... + 340055.

It is an arithmetic number, because the mean of its divisors is an integer number (857099880).

Almost surely, 230111232230 is an apocalyptic number.

30111232230 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 30111232230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41140794240).

30111232230 is an abundant number, since it is smaller than the sum of its proper divisors (52170356250).

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

30111232230 is a wasteful number, since it uses less digits than its factorization.

30111232230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104826 (or 104823 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 30111232230 its reverse (3223211103), we get a palindrome (33334443333).

The spelling of 30111232230 in words is "thirty billion, one hundred eleven million, two hundred thirty-two thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 115 138 139 207 230 278 345 414 417 690 695 834 1035 1251 1390 2070 2085 2502 3197 4170 6255 6394 9591 12510 15985 19182 28773 31970 47955 57546 95910 104651 143865 209302 287730 313953 523255 627906 941859 1046510 1569765 1883718 2406973 3139530 4709295 4813946 7220919 9418590 12034865 14441838 14546489 21662757 24069730 29092978 36104595 43325514 43639467 72209190 72732445 87278934 108313785 130918401 145464890 216627570 218197335 261836802 334569247 436394670 654592005 669138494 1003707741 1309184010 1672846235 2007415482 3011123223 3345692470 5018538705 6022246446 10037077410 15055616115 30111232230