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30450914828 = 22172269197359
BaseRepresentation
bin11100010111000001…
…000001011000001100
32220121011202202020022
4130113001001120030
5444330413233303
621553340441312
72125413335225
oct342701013014
986534682208
1030450914828
1111a06825014
125a99b49238
132b439222c9
14168c2a424c
15bd34e8438
hex71704160c

30450914828 has 24 divisors (see below), whose sum is σ = 56448907200. Its totient is φ = 14323454208.

The previous prime is 30450914827. The next prime is 30450914831. The reversal of 30450914828 is 82841905403.

It is a happy number.

It is a super-2 number, since 2×304509148282 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30450914821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55613 + ... + 252971.

It is an arithmetic number, because the mean of its divisors is an integer number (2352037800).

Almost surely, 230450914828 is an apocalyptic number.

It is an amenable number.

30450914828 is a deficient number, since it is larger than the sum of its proper divisors (25997992372).

30450914828 is a wasteful number, since it uses less digits than its factorization.

30450914828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199649 (or 199647 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 30450914828 in words is "thirty billion, four hundred fifty million, nine hundred fourteen thousand, eight hundred twenty-eight".

Divisors: 1 2 4 17 34 68 2269 4538 9076 38573 77146 154292 197359 394718 789436 3355103 6710206 13420412 447807571 895615142 1791230284 7612728707 15225457414 30450914828