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30017200530 = 235372730879
BaseRepresentation
bin11011111101001010…
…100010000110010010
32212110221122210001210
4123331022202012102
5442433400404110
621442324440550
72111565665112
oct337512420622
985427583053
1030017200530
1111803a22049
125998849156
132aa4b08225
14164a845042
15baa3c5520
hex6fd2a2192

30017200530 has 48 divisors (see below), whose sum is σ = 74041067520. Its totient is φ = 7788235968.

The previous prime is 30017200517. The next prime is 30017200553. The reversal of 30017200530 is 3500271003.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30017200497 and 30017200506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324370 + ... + 406509.

It is an arithmetic number, because the mean of its divisors is an integer number (1542522240).

Almost surely, 230017200530 is an apocalyptic number.

30017200530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30017200530 is an abundant number, since it is smaller than the sum of its proper divisors (44023866990).

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

30017200530 is a wasteful number, since it uses less digits than its factorization.

30017200530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730963 (or 730926 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 21.

Adding to 30017200530 its reverse (3500271003), we get a palindrome (33517471533).

The spelling of 30017200530 in words is "thirty billion, seventeen million, two hundred thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 555 1110 1369 2738 4107 6845 8214 13690 20535 41070 730879 1461758 2192637 3654395 4385274 7308790 10963185 21926370 27042523 54085046 81127569 135212615 162255138 270425230 405637845 811275690 1000573351 2001146702 3001720053 5002866755 6003440106 10005733510 15008600265 30017200530