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30142241320 = 23513718130389
BaseRepresentation
bin11100000100100111…
…100001101000101000
32212210122221111210011
4130010213201220220
5443212403210240
621502552501304
72114644552402
oct340447415050
985718844704
1030142241320
1111868567044
125a126aa834
132ac49a8669
14165d2b3b72
15bb63746ea
hex7049e1a28

30142241320 has 64 divisors (see below), whose sum is σ = 68694771600. Its totient is φ = 11902371840.

The previous prime is 30142241317. The next prime is 30142241347. The reversal of 30142241320 is 2314224103.

It can be written as a sum of positive squares in 8 ways, for example, as 7443203076 + 22699038244 = 86274^2 + 150662^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30142241291 and 30142241300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 976686 + ... + 1007074.

Almost surely, 230142241320 is an apocalyptic number.

It is an amenable number.

30142241320 is an abundant number, since it is smaller than the sum of its proper divisors (38552530280).

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

30142241320 is a wasteful number, since it uses less digits than its factorization.

30142241320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30718 (or 30714 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 30142241320 its reverse (2314224103), we get a palindrome (32456465423).

The spelling of 30142241320 in words is "thirty billion, one hundred forty-two million, two hundred forty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 137 181 274 362 548 685 724 905 1096 1370 1448 1810 2740 3620 5480 7240 24797 30389 49594 60778 99188 121556 123985 151945 198376 243112 247970 303890 495940 607780 991880 1215560 4163293 5500409 8326586 11000818 16653172 20816465 22001636 27502045 33306344 41632930 44003272 55004090 83265860 110008180 166531720 220016360 753556033 1507112066 3014224132 3767780165 6028448264 7535560330 15071120660 30142241320