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30710974752 = 2532831284763
BaseRepresentation
bin11100100110100001…
…000100100100100000
32221021022010011101100
4130212201010210200
51000344002143002
622035230434400
72135021656353
oct344641044440
987238104340
1030710974752
111202a5a9977
125b51062a00
132b85777913
1416b4a3c29a
15beb26811c
hex726844920

30710974752 has 72 divisors (see below), whose sum is σ = 88386624144. Its totient is φ = 10113646464.

The previous prime is 30710974747. The next prime is 30710974787. The reversal of 30710974752 is 25747901703.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 30710974698 and 30710974707.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618478 + ... + 666285.

It is an arithmetic number, because the mean of its divisors is an integer number (1227592002).

Almost surely, 230710974752 is an apocalyptic number.

30710974752 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30710974752 is an abundant number, since it is smaller than the sum of its proper divisors (57675649392).

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

30710974752 is a wasteful number, since it uses less digits than its factorization.

30710974752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284862 (or 1284851 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The spelling of 30710974752 in words is "thirty billion, seven hundred ten million, nine hundred seventy-four thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 83 96 144 166 249 288 332 498 664 747 996 1328 1494 1992 2656 2988 3984 5976 7968 11952 23904 1284763 2569526 3854289 5139052 7708578 10278104 11562867 15417156 20556208 23125734 30834312 41112416 46251468 61668624 92502936 106635329 123337248 185005872 213270658 319905987 370011744 426541316 639811974 853082632 959717961 1279623948 1706165264 1919435922 2559247896 3412330528 3838871844 5118495792 7677743688 10236991584 15355487376 30710974752