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30864508624 = 2473124921157
BaseRepresentation
bin11100101111101010…
…110000011011010000
32221200000000111021001
4130233222300123100
51001202303233444
622102353311344
72141564665105
oct345752603320
987600014231
1030864508624
11120a9235174
125b94565554
132bab513171
1416cb1a6aac
15c099948d4
hex72fab06d0

30864508624 has 40 divisors (see below), whose sum is σ = 60670565000. Its totient is φ = 15207948288.

The previous prime is 30864508603. The next prime is 30864508643. The reversal of 30864508624 is 42680546803.

It can be written as a sum of positive squares in 4 ways, for example, as 155451024 + 30709057600 = 12468^2 + 175240^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1448254 + ... + 1469410.

It is an arithmetic number, because the mean of its divisors is an integer number (1516764125).

Almost surely, 230864508624 is an apocalyptic number.

It is an amenable number.

30864508624 is a deficient number, since it is larger than the sum of its proper divisors (29806056376).

30864508624 is a wasteful number, since it uses less digits than its factorization.

30864508624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22487 (or 22481 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 46.

The spelling of 30864508624 in words is "thirty billion, eight hundred sixty-four million, five hundred eight thousand, six hundred twenty-four".

Divisors: 1 2 4 8 16 73 146 292 584 1168 1249 2498 4996 9992 19984 21157 42314 84628 91177 169256 182354 338512 364708 729416 1458832 1544461 3088922 6177844 12355688 24711376 26425093 52850186 105700372 211400744 422801488 1929031789 3858063578 7716127156 15432254312 30864508624