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30183252 = 22311251911
BaseRepresentation
bin111001100100…
…0111101010100
32002210110122020
41303020331110
530211331002
62554533140
7514360551
oct163107524
962713566
1030183252
1116046140
12a1371b0
13633a518
144019a28
1529b32bc
hex1cc8f54

30183252 has 48 divisors (see below), whose sum is σ = 77220864. Its totient is φ = 9100000.

The previous prime is 30183247. The next prime is 30183271. The reversal of 30183252 is 25238103.

It is a super-2 number, since 2×301832522 = 1822057402591008, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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 15 ways as a sum of consecutive naturals, for example, 32677 + ... + 33587.

It is an arithmetic number, because the mean of its divisors is an integer number (1608768).

Almost surely, 230183252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30183252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38610432).

30183252 is an abundant number, since it is smaller than the sum of its proper divisors (47037612).

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

30183252 is a wasteful number, since it uses less digits than its factorization.

30183252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 30183252 is about 5493.9286489724. The cubic root of 30183252 is about 311.3546407087.

The spelling of 30183252 in words is "thirty million, one hundred eighty-three thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 251 502 753 911 1004 1506 1822 2733 2761 3012 3644 5466 5522 8283 10021 10932 11044 16566 20042 30063 33132 40084 60126 120252 228661 457322 685983 914644 1371966 2515271 2743932 5030542 7545813 10061084 15091626 30183252