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30038375 = 53594073
BaseRepresentation
bin111001010010…
…1100101100111
32002112002220102
41302211211213
530142212000
62551454315
7513215303
oct162454547
962462812
1030038375
1115a57304
12a08739b
1362b95b3
143dbcd03
1529853d5
hex1ca5967

30038375 has 16 divisors (see below), whose sum is σ = 38132640. Its totient is φ = 23617600.

The previous prime is 30038369. The next prime is 30038377. The reversal of 30038375 is 57383003.

It is not a de Polignac number, because 30038375 - 28 = 30038119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30038377) 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, 5339 + ... + 9411.

It is an arithmetic number, because the mean of its divisors is an integer number (2383290).

Almost surely, 230038375 is an apocalyptic number.

30038375 is a deficient number, since it is larger than the sum of its proper divisors (8094265).

30038375 is an equidigital number, since it uses as much as digits as its factorization.

30038375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147 (or 4137 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 30038375 is about 5480.7275976826. The cubic root of 30038375 is about 310.8556830853.

The spelling of 30038375 in words is "thirty million, thirty-eight thousand, three hundred seventy-five".

Divisors: 1 5 25 59 125 295 1475 4073 7375 20365 101825 240307 509125 1201535 6007675 30038375