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30666410432 = 267175237699
BaseRepresentation
bin11100100011110111…
…000100100111000000
32221011012021001121222
4130203313010213000
51000301100113212
622030555334212
72133641121260
oct344367044700
987135231558
1030666410432
1112007431059
125b3a151368
132b794736b8
1416acb5b7a0
15be73b3c72
hex723dc49c0

30666410432 has 112 divisors (see below), whose sum is σ = 73788422400. Its totient is φ = 12344389632.

The previous prime is 30666410431. The next prime is 30666410443. The reversal of 30666410432 is 23401466603.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 30666410392 and 30666410401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30666410431) 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, 3979319 + ... + 3987017.

It is an arithmetic number, because the mean of its divisors is an integer number (658825200).

Almost surely, 230666410432 is an apocalyptic number.

30666410432 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 30666410432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36894211200).

30666410432 is an abundant number, since it is smaller than the sum of its proper divisors (43122011968).

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

30666410432 is a wasteful number, since it uses less digits than its factorization.

30666410432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8258 (or 8248 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 30666410432 in words is "thirty billion, six hundred sixty-six million, four hundred ten thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 64 68 112 119 136 224 238 272 448 476 523 544 952 1046 1088 1904 2092 3661 3808 4184 7322 7616 7699 8368 8891 14644 15398 16736 17782 29288 30796 33472 35564 53893 58576 61592 62237 71128 107786 117152 123184 124474 130883 142256 215572 234304 246368 248948 261766 284512 431144 492736 497896 523532 569024 862288 916181 995792 1047064 1724576 1832362 1991584 2094128 3449152 3664724 3983168 4026577 4188256 7329448 8053154 8376512 14658896 16106308 28186039 29317792 32212616 56372078 58635584 64425232 68451809 112744156 128850464 136903618 225488312 257700928 273807236 450976624 479162663 547614472 901953248 958325326 1095228944 1803906496 1916650652 2190457888 3833301304 4380915776 7666602608 15333205216 30666410432