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30301231232 = 273153149967
BaseRepresentation
bin11100001110000110…
…000001100010000000
32220012202010000221102
4130032012001202000
5444024103344412
621530432313532
72121615134006
oct341606014200
986182100842
1030301231232
111193a289568
125a579a28a8
132b1b90442c
14167645ca76
15bc52cc8c2
hex70e181880

30301231232 has 128 divisors (see below), whose sum is σ = 63980928000. Its totient is φ = 14273925120.

The previous prime is 30301231199. The next prime is 30301231243. The reversal of 30301231232 is 23213210303.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×303012312322 (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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31334813 + ... + 31335779.

It is an arithmetic number, because the mean of its divisors is an integer number (499851000).

Almost surely, 230301231232 is an apocalyptic number.

30301231232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30301231232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31990464000).

30301231232 is an abundant number, since it is smaller than the sum of its proper divisors (33679696768).

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

30301231232 is a wasteful number, since it uses less digits than its factorization.

30301231232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214 (or 1202 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30301231232 its reverse (23213210303), we get a palindrome (53514441535).

The spelling of 30301231232 in words is "thirty billion, three hundred one million, two hundred thirty-one thousand, two hundred thirty-two".

Divisors: 1 2 4 8 16 31 32 53 62 64 106 124 128 149 212 248 298 424 496 596 848 967 992 1192 1643 1696 1934 1984 2384 3286 3392 3868 3968 4619 4768 6572 6784 7736 7897 9238 9536 13144 15472 15794 18476 19072 26288 29977 30944 31588 36952 51251 52576 59954 61888 63176 73904 102502 105152 119908 123776 126352 144083 147808 205004 210304 239816 244807 252704 288166 295616 410008 479632 489614 505408 576332 591232 820016 959264 979228 1010816 1152664 1588781 1640032 1918528 1958456 2305328 3177562 3280064 3837056 3916912 4466573 4610656 6355124 6560128 7636399 7833824 8933146 9221312 12710248 15272798 15667648 17866292 18442624 25420496 30545596 31335296 35732584 50840992 61091192 71465168 101681984 122182384 142930336 203363968 236728369 244364768 285860672 473456738 488729536 571721344 946913476 977459072 1893826952 3787653904 7575307808 15150615616 30301231232