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30012125 = 5311132373
BaseRepresentation
bin111001001111…
…1001011011101
32002110202220012
41302133023131
530140342000
62551133005
7513045623
oct162371335
962422805
1030012125
1115a39610
12a074165
1362aa670
143db3513
15297c735
hex1c9f2dd

30012125 has 64 divisors (see below), whose sum is σ = 46545408. Its totient is φ = 19008000.

The previous prime is 30012107. The next prime is 30012139. The reversal of 30012125 is 52121003.

It is a happy number.

It is not a de Polignac number, because 30012125 - 210 = 30011101 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, 411089 + ... + 411161.

It is an arithmetic number, because the mean of its divisors is an integer number (727272).

Almost surely, 230012125 is an apocalyptic number.

It is an amenable number.

30012125 is a deficient number, since it is larger than the sum of its proper divisors (16533283).

30012125 is a wasteful number, since it uses less digits than its factorization.

30012125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 30012125 is about 5478.3323192373. The cubic root of 30012125 is about 310.7651062838.

Adding to 30012125 its reverse (52121003), we get a palindrome (82133128).

The spelling of 30012125 in words is "thirty million, twelve thousand, one hundred twenty-five".

Divisors: 1 5 11 13 23 25 55 65 73 115 125 143 253 275 299 325 365 575 715 803 949 1265 1375 1495 1625 1679 1825 2875 3289 3575 4015 4745 6325 7475 8395 9125 10439 16445 17875 18469 20075 21827 23725 31625 37375 41975 52195 82225 92345 100375 109135 118625 209875 240097 260975 411125 461725 545675 1200485 1304875 2308625 2728375 6002425 30012125