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30027725 = 5271367197
BaseRepresentation
bin111001010001…
…0111111001101
32002111120021222
41302202333031
530141341400
62551333125
7513142250
oct162427715
962446258
1030027725
1115a4a302
12a0811a5
1362b47b0
143db9097
152982185
hex1ca2fcd

30027725 has 48 divisors (see below), whose sum is σ = 46747008. Its totient is φ = 18627840.

The previous prime is 30027713. The next prime is 30027727. The reversal of 30027725 is 52772003.

It is not a de Polignac number, because 30027725 - 28 = 30027469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30027694 and 30027703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30027727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152327 + ... + 152523.

It is an arithmetic number, because the mean of its divisors is an integer number (973896).

Almost surely, 230027725 is an apocalyptic number.

30027725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30027725 is a deficient number, since it is larger than the sum of its proper divisors (16719283).

30027725 is a wasteful number, since it uses less digits than its factorization.

30027725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 30027725 is about 5479.7559252215. The cubic root of 30027725 is about 310.8189411470.

Adding to 30027725 its reverse (52772003), we get a palindrome (82799728).

The spelling of 30027725 in words is "thirty million, twenty-seven thousand, seven hundred twenty-five".

Divisors: 1 5 7 13 25 35 65 67 91 175 197 325 335 455 469 871 985 1379 1675 2275 2345 2561 4355 4925 6097 6895 11725 12805 13199 17927 21775 30485 34475 64025 65995 89635 92393 152425 171587 329975 448175 461965 857935 1201109 2309825 4289675 6005545 30027725