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30225480 = 2335251879
BaseRepresentation
bin111001101001…
…1010001001000
32002212121120020
41303103101020
530214203410
62555500440
7514624635
oct163232110
962777506
1030225480
111607493a
12a157720
1363537cc
14402b18c
1529c0a70
hex1cd3448

30225480 has 32 divisors (see below), whose sum is σ = 90676800. Its totient is φ = 8060096.

The previous prime is 30225463. The next prime is 30225493. The reversal of 30225480 is 8452203.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30225480.

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 7 ways as a sum of consecutive naturals, for example, 125820 + ... + 126059.

It is an arithmetic number, because the mean of its divisors is an integer number (2833650).

Almost surely, 230225480 is an apocalyptic number.

30225480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30225480 is an abundant number, since it is smaller than the sum of its proper divisors (60451320).

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

30225480 is a wasteful number, since it uses less digits than its factorization.

30225480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251893 (or 251889 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 30225480 is about 5497.7704571944. The cubic root of 30225480 is about 311.4997737005.

Adding to 30225480 its reverse (8452203), we get a palindrome (38677683).

The spelling of 30225480 in words is "thirty million, two hundred twenty-five thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 251879 503758 755637 1007516 1259395 1511274 2015032 2518790 3022548 3778185 5037580 6045096 7556370 10075160 15112740 30225480