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30503284 = 2272198191
BaseRepresentation
bin111010001011…
…1000101110100
32010101201122021
41310113011310
530302101114
63005442524
7520162600
oct164270564
963351567
1030503284
1116244629
12a270444
1364200a6
1440a0500
152a28024
hex1d17174

30503284 has 36 divisors (see below), whose sum is σ = 65372160. Its totient is φ = 12383280.

The previous prime is 30503279. The next prime is 30503309. The reversal of 30503284 is 48230503.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 372 + ... + 7819.

Almost surely, 230503284 is an apocalyptic number.

It is an amenable number.

30503284 is an abundant number, since it is smaller than the sum of its proper divisors (34868876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30503284 is a wasteful number, since it uses less digits than its factorization.

30503284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228 (or 8219 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 30503284 is about 5522.9778199808. The cubic root of 30503284 is about 312.4512017670.

Adding to 30503284 its reverse (48230503), we get a palindrome (78733787).

The spelling of 30503284 in words is "thirty million, five hundred three thousand, two hundred eighty-four".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 133 196 266 532 931 1862 3724 8191 16382 32764 57337 114674 155629 229348 311258 401359 622516 802718 1089403 1605436 2178806 4357612 7625821 15251642 30503284