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30023252 = 2273134589
BaseRepresentation
bin111001010000…
…1111001010100
32002111100011022
41302201321110
530141221002
62551300312
7513123230
oct162417124
962440138
1030023252
1115a46a06
12a07a698
1362b274c
143db75c0
152980ba2
hex1ca1e54

30023252 has 24 divisors (see below), whose sum is σ = 61985280. Its totient is φ = 12451680.

The previous prime is 30023251. The next prime is 30023261. The reversal of 30023252 is 25232003.

It is a self number, because there is not a number n which added to its sum of digits gives 30023252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30023251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16427 + ... + 18162.

It is an arithmetic number, because the mean of its divisors is an integer number (2582720).

Almost surely, 230023252 is an apocalyptic number.

It is an amenable number.

30023252 is an abundant number, since it is smaller than the sum of its proper divisors (31962028).

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

30023252 is a wasteful number, since it uses less digits than its factorization.

30023252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34631 (or 34629 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 30023252 is about 5479.3477714049. The cubic root of 30023252 is about 310.8035069423.

Adding to 30023252 its reverse (25232003), we get a palindrome (55255255).

The spelling of 30023252 in words is "thirty million, twenty-three thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 34589 69178 138356 242123 484246 968492 1072259 2144518 4289036 7505813 15011626 30023252