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30293457519 = 3131967631967
BaseRepresentation
bin11100001101101000…
…010111101001101111
32220012012111002102010
4130031220113221233
5444020111120034
621525553532303
72121462066063
oct341550275157
986165432363
1030293457519
111193595a006
125a55274093
132b1a111cc0
1416753d7aa3
15bc47943e9
hex70da17a6f

30293457519 has 64 divisors (see below), whose sum is σ = 46592860160. Its totient is φ = 17351832960.

The previous prime is 30293457499. The next prime is 30293457521. The reversal of 30293457519 is 91575439203.

It is not a de Polignac number, because 30293457519 - 28 = 30293457263 is a prime.

It is a super-3 number, since 3×302934575193 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30293457539) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31326774 + ... + 31327740.

It is an arithmetic number, because the mean of its divisors is an integer number (728013440).

Almost surely, 230293457519 is an apocalyptic number.

30293457519 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

30293457519 is a deficient number, since it is larger than the sum of its proper divisors (16299402641).

30293457519 is a wasteful number, since it uses less digits than its factorization.

30293457519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700.

The product of its (nonzero) digits is 1020600, while the sum is 48.

The spelling of 30293457519 in words is "thirty billion, two hundred ninety-three million, four hundred fifty-seven thousand, five hundred nineteen".

Divisors: 1 3 13 19 39 57 67 201 247 631 741 871 967 1273 1893 2613 2901 3819 8203 11989 12571 16549 18373 24609 35967 37713 42277 49647 55119 64789 126831 155857 194367 238849 467571 549601 610177 716547 803263 842257 1230991 1648803 1830531 2409789 2526771 3692973 7932301 10442419 11593363 16002883 23796903 31327257 34780089 40881859 48008649 122645577 150713719 452141157 531464167 776755321 1594392501 2330265963 10097819173 30293457519