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30243433251242 = 281529118547631
BaseRepresentation
bin1101110000001100110010…
…00110001000000110101010
310222002020120212022012210102
412320012121012020012222
512431002022403014432
6144153350314345402
76241005320030651
oct670063106100652
9128066525265712
1030243433251242
119700193697812
12348546872b262
1313b4c35ba9593
14767b0b9c0198
15376a7b359962
hex1b81991881aa

30243433251242 has 8 divisors (see below), whose sum is σ = 45365207965632. Its totient is φ = 15121697262700.

The previous prime is 30243433251209. The next prime is 30243433251271. The reversal of 30243433251242 is 24215233434203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30243433251196 and 30243433251205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7643234 + ... + 10904397.

It is an arithmetic number, because the mean of its divisors is an integer number (5670650995704).

Almost surely, 230243433251242 is an apocalyptic number.

30243433251242 is a deficient number, since it is larger than the sum of its proper divisors (15121774714390).

30243433251242 is a wasteful number, since it uses less digits than its factorization.

30243433251242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19362924.

The product of its (nonzero) digits is 414720, while the sum is 38.

Adding to 30243433251242 its reverse (24215233434203), we get a palindrome (54458666685445).

The spelling of 30243433251242 in words is "thirty trillion, two hundred forty-three billion, four hundred thirty-three million, two hundred fifty-one thousand, two hundred forty-two".

Divisors: 1 2 815291 1630582 18547631 37095262 15121716625621 30243433251242