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30420657736760 = 2356112467482679
BaseRepresentation
bin1101110101010110111000…
…11111111000110000111000
310222201012000221102212221102
412322223130133320300320
512441403001340034020
6144411020210230532
76256551154223054
oct672533437706070
9128635027385842
1030420657736760
119769368255875
1234b3888885448
1313c886a7b7865
14772520d2ac64
1537b4a0063475
hex1baadc7f8c38

30420657736760 has 32 divisors (see below), whose sum is σ = 69568553354400. Its totient is φ = 11968783370880.

The previous prime is 30420657736741. The next prime is 30420657736783. The reversal of 30420657736760 is 6763775602403.

It is a junction number, because it is equal to n+sod(n) for n = 30420657736696 and 30420657736705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6233738900 + ... + 6233743779.

It is an arithmetic number, because the mean of its divisors is an integer number (2174017292325).

Almost surely, 230420657736760 is an apocalyptic number.

It is an amenable number.

30420657736760 is an abundant number, since it is smaller than the sum of its proper divisors (39147895617640).

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

30420657736760 is a wasteful number, since it uses less digits than its factorization.

30420657736760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12467482751 (or 12467482747 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 56.

The spelling of 30420657736760 in words is "thirty trillion, four hundred twenty billion, six hundred fifty-seven million, seven hundred thirty-six thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 61 122 244 305 488 610 1220 2440 12467482679 24934965358 49869930716 62337413395 99739861432 124674826790 249349653580 498699307160 760516443419 1521032886838 3042065773676 3802582217095 6084131547352 7605164434190 15210328868380 30420657736760