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30450525 = 3527311871
BaseRepresentation
bin111010000101…
…0001101011101
32010022001021020
41310022031131
530243404100
63004354353
7516553020
oct164121535
963261236
1030450525
1116208a26
12a2459b9
136402081
1440891b7
152a175a0
hex1d0a35d

30450525 has 48 divisors (see below), whose sum is σ = 59424768. Its totient is φ = 13464000.

The previous prime is 30450523. The next prime is 30450533. The reversal of 30450525 is 52505403.

It is not a de Polignac number, because 30450525 - 21 = 30450523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30450495 and 30450504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30450523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15340 + ... + 17210.

It is an arithmetic number, because the mean of its divisors is an integer number (1238016).

Almost surely, 230450525 is an apocalyptic number.

30450525 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30450525 is a deficient number, since it is larger than the sum of its proper divisors (28974243).

30450525 is a wasteful number, since it uses less digits than its factorization.

30450525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922 (or 1917 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 30450525 is about 5518.1994345982. The cubic root of 30450525 is about 312.2709575009.

Adding to 30450525 its reverse (52505403), we get a palindrome (82955928).

The spelling of 30450525 in words is "thirty million, four hundred fifty thousand, five hundred twenty-five".

Divisors: 1 3 5 7 15 21 25 31 35 75 93 105 155 175 217 465 525 651 775 1085 1871 2325 3255 5425 5613 9355 13097 16275 28065 39291 46775 58001 65485 140325 174003 196455 290005 327425 406007 870015 982275 1218021 1450025 2030035 4350075 6090105 10150175 30450525