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30559584968 = 23112913787407
BaseRepresentation
bin11100011101011111…
…100100001011001000
32220212202020202122022
4130131133210023020
51000041223204333
622012221544012
72131203120623
oct343537441310
986782222568
1030559584968
1111a620a8550
125b0a415008
132b602b0273
14169c8b0dba
15bdcd11c98
hex71d7e42c8

30559584968 has 64 divisors (see below), whose sum is σ = 65136441600. Its totient is φ = 13313681920.

The previous prime is 30559584967. The next prime is 30559584977. The reversal of 30559584968 is 86948595503.

It is a Cunningham number, because it is equal to 1748132-1.

It is a super-2 number, since 2×305595849682 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30559584968.

It is not an unprimeable number, because it can be changed into a prime (30559584967) 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, 305921 + ... + 393327.

It is an arithmetic number, because the mean of its divisors is an integer number (1017756900).

Almost surely, 230559584968 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 30559584968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32568220800).

30559584968 is an abundant number, since it is smaller than the sum of its proper divisors (34576856632).

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

30559584968 is a wasteful number, since it uses less digits than its factorization.

30559584968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87590 (or 87586 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 62.

The spelling of 30559584968 in words is "thirty billion, five hundred fifty-nine million, five hundred eighty-four thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 11 22 29 44 58 88 116 137 232 274 319 548 638 1096 1276 1507 2552 3014 3973 6028 7946 12056 15892 31784 43703 87406 87407 174812 174814 349624 349628 699256 961477 1922954 2534803 3845908 5069606 7691816 10139212 11974759 20278424 23949518 27882833 47899036 55765666 95798072 111531332 131722349 223062664 263444698 347268011 526889396 694536022 1053778792 1389072044 2778144088 3819948121 7639896242 15279792484 30559584968