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30707664534 = 2327512271613
BaseRepresentation
bin11100100110010100…
…011100011010010110
32221021001212222121200
4130212110130122112
51000342130231114
622035031453330
72134651561521
oct344624343226
987231788550
1030707664534
1112028748958
125b4bb27246
132b84b89001
1416b4419bb8
15bead12409
hex72651c696

30707664534 has 24 divisors (see below), whose sum is σ = 66621895392. Its totient is φ = 10222254000.

The previous prime is 30707664521. The next prime is 30707664539. The reversal of 30707664534 is 43546670703.

It is a super-2 number, since 2×307076645342 (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 30707664534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30707664539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1122289 + ... + 1149324.

It is an arithmetic number, because the mean of its divisors is an integer number (2775912308).

Almost surely, 230707664534 is an apocalyptic number.

30707664534 is an abundant number, since it is smaller than the sum of its proper divisors (35914230858).

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

30707664534 is a wasteful number, since it uses less digits than its factorization.

30707664534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272372 (or 2272369 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 45.

The spelling of 30707664534 in words is "thirty billion, seven hundred seven million, six hundred sixty-four thousand, five hundred thirty-four".

Divisors: 1 2 3 6 9 18 751 1502 2253 4506 6759 13518 2271613 4543226 6814839 13629678 20444517 40889034 1705981363 3411962726 5117944089 10235888178 15353832267 30707664534