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30643115104 = 25733190059
BaseRepresentation
bin11100100010011110…
…001101010001100000
32221002120102112110001
4130202132031101200
51000224114140404
622024404145344
72133236116000
oct344236152140
987076375401
1030643115104
1111aa526aa18
125b32398254
132b746a8394
1416a9a16000
15be53117a4
hex72278d460

30643115104 has 96 divisors (see below), whose sum is σ = 72624384000. Its totient is φ = 12708984960.

The previous prime is 30643115057. The next prime is 30643115123. The reversal of 30643115104 is 40151134603.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295227 + ... + 385285.

It is an arithmetic number, because the mean of its divisors is an integer number (756504000).

Almost surely, 230643115104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30643115104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36312192000).

30643115104 is an abundant number, since it is smaller than the sum of its proper divisors (41981268896).

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

30643115104 is an equidigital number, since it uses as much as digits as its factorization.

30643115104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90121 (or 90099 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 30643115104 its reverse (40151134603), we get a palindrome (70794249707).

The spelling of 30643115104 in words is "thirty billion, six hundred forty-three million, one hundred fifteen thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 28 31 32 49 56 62 98 112 124 196 217 224 248 343 392 434 496 686 784 868 992 1372 1519 1568 1736 2744 3038 3472 5488 6076 6944 10633 10976 12152 21266 24304 42532 48608 85064 90059 170128 180118 340256 360236 630413 720472 1260826 1440944 2521652 2791829 2881888 4412891 5043304 5583658 8825782 10086608 11167316 17651564 19542803 20173216 22334632 30890237 35303128 39085606 44669264 61780474 70606256 78171212 89338528 123560948 136799621 141212512 156342424 247121896 273599242 312684848 494243792 547198484 625369696 957597347 988487584 1094396968 1915194694 2188793936 3830389388 4377587872 7660778776 15321557552 30643115104