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30283825 = 52111343197
BaseRepresentation
bin111001110000…
…1100000110001
32002222120121011
41303201200301
530223040300
63001030521
7515260015
oct163414061
962876534
1030283825
1116104760
12a185441
136374230
144044545
1529d2eba
hex1ce1831

30283825 has 48 divisors (see below), whose sum is σ = 45372096. Its totient is φ = 19756800.

The previous prime is 30283769. The next prime is 30283849. The reversal of 30283825 is 52838203.

It is not a de Polignac number, because 30283825 - 29 = 30283313 is a prime.

It is a super-2 number, since 2×302838252 = 1834220113261250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153627 + ... + 153823.

It is an arithmetic number, because the mean of its divisors is an integer number (945252).

Almost surely, 230283825 is an apocalyptic number.

It is an amenable number.

30283825 is a deficient number, since it is larger than the sum of its proper divisors (15088271).

30283825 is a wasteful number, since it uses less digits than its factorization.

30283825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 30283825 is about 5503.0741408780. The cubic root of 30283825 is about 311.7000768070.

The spelling of 30283825 in words is "thirty million, two hundred eighty-three thousand, eight hundred twenty-five".

Divisors: 1 5 11 13 25 43 55 65 143 197 215 275 325 473 559 715 985 1075 2167 2365 2561 2795 3575 4925 6149 8471 10835 11825 12805 13975 28171 30745 42355 54175 64025 93181 110123 140855 153725 211775 465905 550615 704275 1211353 2329525 2753075 6056765 30283825