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30027504672 = 25321157716427
BaseRepresentation
bin11011111101110001…
…110101110000100000
32212111200001021200200
4123331301311300200
5442444020122142
621443333345200
72112052402254
oct337561656040
985450037620
1030027504672
111180981a770
1259a0198200
132aa6ca5359
14164bd68264
15bab25d64c
hex6fdc75c20

30027504672 has 144 divisors (see below), whose sum is σ = 93320633952. Its totient is φ = 9082920960.

The previous prime is 30027504659. The next prime is 30027504721. The reversal of 30027504672 is 27640572003.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1819723 + ... + 1836149.

It is an arithmetic number, because the mean of its divisors is an integer number (648059958).

Almost surely, 230027504672 is an apocalyptic number.

30027504672 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 30027504672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46660316976).

30027504672 is an abundant number, since it is smaller than the sum of its proper divisors (63293129280).

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

30027504672 is a wasteful number, since it uses less digits than its factorization.

30027504672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17031 (or 17020 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 30027504672 in words is "thirty billion, twenty-seven million, five hundred four thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 66 72 88 96 99 132 144 176 198 264 288 352 396 528 577 792 1056 1154 1584 1731 2308 3168 3462 4616 5193 6347 6924 9232 10386 12694 13848 16427 18464 19041 20772 25388 27696 32854 38082 41544 49281 50776 55392 57123 65708 76164 83088 98562 101552 114246 131416 147843 152328 166176 180697 197124 203104 228492 262832 295686 304656 361394 394248 456984 525664 542091 591372 609312 722788 788496 913968 1084182 1182744 1445576 1576992 1626273 1827936 2168364 2365488 2891152 3252546 4336728 4730976 5782304 6505092 8673456 9478379 13010184 17346912 18956758 26020368 28435137 37913516 52040736 56870274 75827032 85305411 104262169 113740548 151654064 170610822 208524338 227481096 303308128 312786507 341221644 417048676 454962192 625573014 682443288 834097352 909924384 938359521 1251146028 1364886576 1668194704 1876719042 2502292056 2729773152 3336389408 3753438084 5004584112 7506876168 10009168224 15013752336 30027504672