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30572168 = 2311347411
BaseRepresentation
bin111010010011…
…1111010001000
32010112020010112
41310213322020
530311302133
63011133452
7520600454
oct164477210
963466115
1030572168
1116291360
12a2a4288
136445553
1440bb664
152a3d648
hex1d27e88

30572168 has 16 divisors (see below), whose sum is σ = 62534160. Its totient is φ = 13896400.

The previous prime is 30572141. The next prime is 30572173. The reversal of 30572168 is 86127503.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 173618 + ... + 173793.

It is an arithmetic number, because the mean of its divisors is an integer number (3908385).

Almost surely, 230572168 is an apocalyptic number.

It is an amenable number.

30572168 is an abundant number, since it is smaller than the sum of its proper divisors (31961992).

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

30572168 is a wasteful number, since it uses less digits than its factorization.

30572168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347428 (or 347424 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 30572168 is about 5529.2104318790. The cubic root of 30572168 is about 312.6862224458.

It can be divided in two parts, 3057 and 2168, that added together give a palindrome (5225).

The spelling of 30572168 in words is "thirty million, five hundred seventy-two thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 11 22 44 88 347411 694822 1389644 2779288 3821521 7643042 15286084 30572168