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30538355753 = 52375831269
BaseRepresentation
bin11100011100001110…
…100101010000101001
32220211021022012122002
4130130032211100221
51000020304341003
622010142540345
72130524512103
oct343416452051
986737265562
1030538355753
1111a51118744
125b032976b5
132b58a894b9
141699b46573
15bdb01ba88
hex71c3a5429

30538355753 has 4 divisors (see below), whose sum is σ = 30544192260. Its totient is φ = 30532519248.

The previous prime is 30538355747. The next prime is 30538355761. The reversal of 30538355753 is 35755383503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26175356944 + 4362998809 = 161788^2 + 66053^2 .

It is a cyclic number.

It is not a de Polignac number, because 30538355753 - 226 = 30471246889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30538355698 and 30538355707.

It is not an unprimeable number, because it can be changed into a prime (30538355053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2910398 + ... + 2920871.

It is an arithmetic number, because the mean of its divisors is an integer number (7636048065).

Almost surely, 230538355753 is an apocalyptic number.

It is an amenable number.

30538355753 is a deficient number, since it is larger than the sum of its proper divisors (5836507).

30538355753 is an equidigital number, since it uses as much as digits as its factorization.

30538355753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5836506.

The product of its (nonzero) digits is 2835000, while the sum is 47.

The spelling of 30538355753 in words is "thirty billion, five hundred thirty-eight million, three hundred fifty-five thousand, seven hundred fifty-three".

Divisors: 1 5237 5831269 30538355753