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30130437540 = 22357131547627
BaseRepresentation
bin11100000011111010…
…011111110110100100
32212202211201211001010
4130003322133312210
5443201343000130
621501451502220
72114442331140
oct340372376644
985684654033
1030130437540
1111861934755
125a0a757970
132ac2404a88
14165b8c0220
15bb52e20b0
hex703e9fda4

30130437540 has 96 divisors (see below), whose sum is σ = 97153588224. Its totient is φ = 6834372480.

The previous prime is 30130437523. The next prime is 30130437599. The reversal of 30130437540 is 4573403103.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 30130437498 and 30130437507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218794 + ... + 328833.

It is an arithmetic number, because the mean of its divisors is an integer number (1012016544).

Almost surely, 230130437540 is an apocalyptic number.

30130437540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30130437540 is an abundant number, since it is smaller than the sum of its proper divisors (67023150684).

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

30130437540 is a wasteful number, since it uses less digits than its factorization.

30130437540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547777 (or 547775 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 30.

The spelling of 30130437540 in words is "thirty billion, one hundred thirty million, four hundred thirty-seven thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 131 140 210 262 393 420 524 655 786 917 1310 1572 1834 1965 2620 2751 3668 3930 4585 5502 7860 9170 11004 13755 18340 27510 55020 547627 1095254 1642881 2190508 2738135 3285762 3833389 5476270 6571524 7666778 8214405 10952540 11500167 15333556 16428810 19166945 23000334 32857620 38333890 46000668 57500835 71739137 76667780 115001670 143478274 215217411 230003340 286956548 358695685 430434822 502173959 717391370 860869644 1004347918 1076087055 1434782740 1506521877 2008695836 2152174110 2510869795 3013043754 4304348220 5021739590 6026087508 7532609385 10043479180 15065218770 30130437540