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30125806725 = 35271927710903
BaseRepresentation
bin11100000011101000…
…110101010010000101
32212202112000112202110
4130003220311102011
5443144201303400
621501204331233
72114355063210
oct340350652205
985675015673
1030125806725
111185a261533
125a090a3b19
132ac1473051
14165b036777
15bb4bc9e50
hex703a35485

30125806725 has 96 divisors (see below), whose sum is σ = 60141230080. Its totient is φ = 12998672640.

The previous prime is 30125806723. The next prime is 30125806787. The reversal of 30125806725 is 52760852103.

It is not a de Polignac number, because 30125806725 - 21 = 30125806723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30125806721) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2757624 + ... + 2768526.

Almost surely, 230125806725 is an apocalyptic number.

30125806725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30125806725 is a deficient number, since it is larger than the sum of its proper divisors (30015423355).

30125806725 is a wasteful number, since it uses less digits than its factorization.

30125806725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11219 (or 11214 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 30125806725 in words is "thirty billion, one hundred twenty-five million, eight hundred six thousand, seven hundred twenty-five".

Divisors: 1 3 5 7 15 19 21 25 35 57 75 95 105 133 175 277 285 399 475 525 665 831 1385 1425 1939 1995 3325 4155 5263 5817 6925 9695 9975 10903 15789 20775 26315 29085 32709 36841 48475 54515 76321 78945 110523 131575 145425 163545 184205 207157 228963 272575 381605 394725 552615 621471 817725 921025 1035785 1144815 1450099 1908025 2763075 3020131 3107355 4350297 5178925 5724075 7250495 9060393 15100655 15536775 21140917 21751485 36252475 45301965 57382489 63422751 75503275 105704585 108757425 172147467 226509825 286912445 317113755 401677423 528522925 860737335 1205032269 1434562225 1585568775 2008387115 4303686675 6025161345 10041935575 30125806725