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30173427025 = 52747092
BaseRepresentation
bin11100000110011110…
…011111010101010001
32212212211121220112021
4130012132133111101
5443243344131100
621510025131441
72115503620000
oct340636372521
985784556467
1030173427025
1111884127355
125a21029b81
132acb2a7241
1416634b0c37
15bb8e84a1a
hex70679f551

30173427025 has 45 divisors (see below), whose sum is σ = 43709943921. Its totient is φ = 20661167520.

The previous prime is 30173427001. The next prime is 30173427043. The reversal of 30173427025 is 52072437103.

The square root of 30173427025 is 173705.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 8333316369 + 21840110656 = 91287^2 + 147784^2 .

It is not a de Polignac number, because 30173427025 - 25 = 30173426993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 42557371 + ... + 42558079.

Almost surely, 230173427025 is an apocalyptic number.

30173427025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30173427025 is the 173705-th square number.

30173427025 is the 86853-rd centered octagonal number.

It is an amenable number.

30173427025 is a deficient number, since it is larger than the sum of its proper divisors (13536516896).

30173427025 is an frugal number, since it uses more digits than its factorization.

30173427025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 30173427025 in words is "thirty billion, one hundred seventy-three million, four hundred twenty-seven thousand, twenty-five".

Divisors: 1 5 7 25 35 49 175 245 343 709 1225 1715 2401 3545 4963 8575 12005 17725 24815 34741 60025 124075 173705 243187 502681 868525 1215935 1702309 2513405 3518767 6079675 8511545 12567025 17593835 24631369 42557725 87969175 123156845 172419583 615784225 862097915 1206937081 4310489575 6034685405 30173427025