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30180484 = 2231243391
BaseRepresentation
bin111001100100…
…0010010000100
32002210022211201
41303020102010
530211233414
62554512244
7514346515
oct163102204
962708751
1030180484
1116044054
12a135684
136339199
144018a0c
1529b2574
hex1cc8484

30180484 has 12 divisors (see below), whose sum is σ = 54519808. Its totient is φ = 14603400.

The previous prime is 30180461. The next prime is 30180487. The reversal of 30180484 is 48408103.

It is a super-2 number, since 2×301804842 = 1821723228948512, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30180487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121572 + ... + 121819.

Almost surely, 230180484 is an apocalyptic number.

It is an amenable number.

30180484 is a deficient number, since it is larger than the sum of its proper divisors (24339324).

30180484 is a wasteful number, since it uses less digits than its factorization.

30180484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243426 (or 243424 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 30180484 is about 5493.6767287492. The cubic root of 30180484 is about 311.3451226710.

Adding to 30180484 its reverse (48408103), we get a palindrome (78588587).

The spelling of 30180484 in words is "thirty million, one hundred eighty thousand, four hundred eighty-four".

Divisors: 1 2 4 31 62 124 243391 486782 973564 7545121 15090242 30180484