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30415125 = 3531317367
BaseRepresentation
bin111010000000…
…1100100010101
32010020020201010
41310001210111
530241241000
63003522433
7516344556
oct164014425
963206633
1030415125
1116194374
12a229419
1363bbc20
14407a32d
152a0bd50
hex1d01915

30415125 has 64 divisors (see below), whose sum is σ = 57867264. Its totient is φ = 14054400.

The previous prime is 30415117. The next prime is 30415141. The reversal of 30415125 is 52151403.

It is not a de Polignac number, because 30415125 - 23 = 30415117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82692 + ... + 83058.

It is an arithmetic number, because the mean of its divisors is an integer number (904176).

Almost surely, 230415125 is an apocalyptic number.

It is an amenable number.

30415125 is a deficient number, since it is larger than the sum of its proper divisors (27452139).

30415125 is a wasteful number, since it uses less digits than its factorization.

30415125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 30415125 is about 5514.9909338094. The cubic root of 30415125 is about 312.1499012586.

Adding to 30415125 its reverse (52151403), we get a palindrome (82566528).

The spelling of 30415125 in words is "thirty million, four hundred fifteen thousand, one hundred twenty-five".

Divisors: 1 3 5 13 15 17 25 39 51 65 75 85 125 195 221 255 325 367 375 425 663 975 1101 1105 1275 1625 1835 2125 3315 4771 4875 5505 5525 6239 6375 9175 14313 16575 18717 23855 27525 27625 31195 45875 71565 81107 82875 93585 119275 137625 155975 243321 357825 405535 467925 596375 779875 1216605 1789125 2027675 2339625 6083025 10138375 30415125