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30130131324520 = 2351038278842973
BaseRepresentation
bin1101101100111001101111…
…10001100100111001101000
310221200102010122201222111001
412312130313301210321220
512422123002104341040
6144025331413044344
76226554512401663
oct666346761447150
9127612118658431
1030130131324520
119667131707247
1234675080266b4
1313a734a5a43a6
1476244007c6da
15373b4942d59a
hex1b6737c64e68

30130131324520 has 64 divisors (see below), whose sum is σ = 68533755937920. Its totient is φ = 11920609231104.

The previous prime is 30130131324509. The next prime is 30130131324529. The reversal of 30130131324520 is 2542313103103.

It is not an unprimeable number, because it can be changed into a prime (30130131324529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1014247 + ... + 7828726.

It is an arithmetic number, because the mean of its divisors is an integer number (1070839936530).

Almost surely, 230130131324520 is an apocalyptic number.

It is an amenable number.

30130131324520 is an abundant number, since it is smaller than the sum of its proper divisors (38403624613400).

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

30130131324520 is a wasteful number, since it uses less digits than its factorization.

30130131324520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8843914 (or 8843910 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 30130131324520 its reverse (2542313103103), we get a palindrome (32672444427623).

The spelling of 30130131324520 in words is "thirty trillion, one hundred thirty billion, one hundred thirty-one million, three hundred twenty-four thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 103 206 412 515 824 827 1030 1654 2060 3308 4120 4135 6616 8270 16540 33080 85181 170362 340724 425905 681448 851810 1703620 3407240 8842973 17685946 35371892 44214865 70743784 88429730 176859460 353718920 910826219 1821652438 3643304876 4554131095 7286609752 7313138671 9108262190 14626277342 18216524380 29252554684 36433048760 36565693355 58505109368 73131386710 146262773420 292525546840 753253283113 1506506566226 3013013132452 3766266415565 6026026264904 7532532831130 15065065662260 30130131324520