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30142031340 = 22354517111217
BaseRepresentation
bin11100000100100110…
…101110010111101100
32212210122112211202010
4130010212232113230
5443212330000330
621502544201220
72114643016251
oct340446562754
985718484663
1030142031340
1111868433303
125a12609210
132ac4933c05
14165d25b428
15bb63323b0
hex7049ae5ec

30142031340 has 48 divisors (see below), whose sum is σ = 84417131232. Its totient is φ = 8036023296.

The previous prime is 30142031287. The next prime is 30142031341. The reversal of 30142031340 is 4313024103.

It is not an unprimeable number, because it can be changed into a prime (30142031341) 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, 215412 + ... + 326628.

It is an arithmetic number, because the mean of its divisors is an integer number (1758690234).

Almost surely, 230142031340 is an apocalyptic number.

30142031340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30142031340 is an abundant number, since it is smaller than the sum of its proper divisors (54275099892).

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

30142031340 is a wasteful number, since it uses less digits than its factorization.

30142031340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115746 (or 115744 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30142031340 its reverse (4313024103), we get a palindrome (34455055443).

The spelling of 30142031340 in words is "thirty billion, one hundred forty-two million, thirty-one thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4517 9034 13551 18068 22585 27102 45170 54204 67755 90340 111217 135510 222434 271020 333651 444868 556085 667302 1112170 1334604 1668255 2224340 3336510 6673020 502367189 1004734378 1507101567 2009468756 2511835945 3014203134 5023671890 6028406268 7535507835 10047343780 15071015670 30142031340