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30142404224 = 275316212741
BaseRepresentation
bin11100000100101000…
…001001011010000000
32212210200020210020122
4130010220021122000
5443212423413344
621503000155412
72114646131342
oct340450113200
985720223218
1030142404224
1111868668479
125a12768b68
132ac4a3485a
14165d317292
15bb63a7aee
hex704a09680

30142404224 has 64 divisors (see below), whose sum is σ = 61242405480. Its totient is φ = 14772326400.

The previous prime is 30142404209. The next prime is 30142404247. The reversal of 30142404224 is 42240424103.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28415170624 + 1727233600 = 168568^2 + 41560^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 30142404193 and 30142404202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10995494 + ... + 10998234.

Almost surely, 230142404224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30142404224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30621202740).

30142404224 is an abundant number, since it is smaller than the sum of its proper divisors (31100001256).

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

30142404224 is a wasteful number, since it uses less digits than its factorization.

30142404224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429 (or 4417 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 30142404224 its reverse (42240424103), we get a palindrome (72382828327).

The spelling of 30142404224 in words is "thirty billion, one hundred forty-two million, four hundred four thousand, two hundred twenty-four".

Divisors: 1 2 4 8 16 32 53 64 106 128 212 424 848 1621 1696 2741 3242 3392 5482 6484 6784 10964 12968 21928 25936 43856 51872 85913 87712 103744 145273 171826 175424 207488 290546 343652 350848 581092 687304 1162184 1374608 2324368 2749216 4443161 4648736 5498432 8886322 9297472 10996864 17772644 18594944 35545288 71090576 142181152 235487533 284362304 470975066 568724608 941950132 1883900264 3767800528 7535601056 15071202112 30142404224