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30072661248 = 28375593873
BaseRepresentation
bin11100000000011110…
…000110010100000000
32212121211000110212110
4130000132012110000
5443042100124443
621452025255320
72113141255140
oct340036062400
985554013773
1030072661248
1111832262553
1259b3334540
132ab3456016
141653d60920
15bb01cd233
hex700786500

30072661248 has 72 divisors (see below), whose sum is σ = 91471027648. Its totient is φ = 8592187392.

The previous prime is 30072661237. The next prime is 30072661261. The reversal of 30072661248 is 84216627003.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2791561 + ... + 2802312.

Almost surely, 230072661248 is an apocalyptic number.

It is an amenable number.

30072661248 is an abundant number, since it is smaller than the sum of its proper divisors (61398366400).

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

30072661248 is an equidigital number, since it uses as much as digits as its factorization.

30072661248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593899 (or 5593885 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 30072661248 in words is "thirty billion, seventy-two million, six hundred sixty-one thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 672 768 896 1344 1792 2688 5376 5593873 11187746 16781619 22375492 33563238 39157111 44750984 67126476 78314222 89501968 117471333 134252952 156628444 179003936 234942666 268505904 313256888 358007872 469885332 537011808 626513776 716015744 939770664 1074023616 1253027552 1432031488 1879541328 2148047232 2506055104 3759082656 4296094464 5012110208 7518165312 10024220416 15036330624 30072661248