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30523017217 = 7111723317813
BaseRepresentation
bin11100011011010100…
…000100100000000001
32220210012102221010011
4130123110010200001
51000002343022332
622004434104521
72130250236250
oct343324044001
986705387104
1030523017217
1111a434a1670
125aba11b141
132b55848a44
141697ab2797
15bd99dbe47
hex71b504801

30523017217 has 16 divisors (see below), whose sum is σ = 40293182592. Its totient is φ = 22385099520.

The previous prime is 30523017209. The next prime is 30523017227. The reversal of 30523017217 is 71271032503.

It is not a de Polignac number, because 30523017217 - 23 = 30523017209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30523017227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11657598 + ... + 11660215.

It is an arithmetic number, because the mean of its divisors is an integer number (2518323912).

Almost surely, 230523017217 is an apocalyptic number.

It is an amenable number.

30523017217 is a deficient number, since it is larger than the sum of its proper divisors (9770165375).

30523017217 is a wasteful number, since it uses less digits than its factorization.

30523017217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23317848.

The product of its (nonzero) digits is 8820, while the sum is 31.

The spelling of 30523017217 in words is "thirty billion, five hundred twenty-three million, seventeen thousand, two hundred seventeen".

Divisors: 1 7 11 17 77 119 187 1309 23317813 163224691 256495943 396402821 1795471601 2774819747 4360431031 30523017217