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30023236 = 2229673863
BaseRepresentation
bin111001010000…
…1111001000100
32002111100010201
41302201321010
530141220421
62551300244
7513123205
oct162417104
962440121
1030023236
1115a469a1
12a07a684
1362b2739
143db75ac
152980b91
hex1ca1e44

30023236 has 24 divisors (see below), whose sum is σ = 55177920. Its totient is φ = 14273952.

The previous prime is 30023219. The next prime is 30023251. The reversal of 30023236 is 63232003.

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, 5841 + ... + 9703.

It is an arithmetic number, because the mean of its divisors is an integer number (2299080).

Almost surely, 230023236 is an apocalyptic number.

It is an amenable number.

30023236 is a deficient number, since it is larger than the sum of its proper divisors (25154684).

30023236 is a wasteful number, since it uses less digits than its factorization.

30023236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963 (or 3961 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 30023236 is about 5479.3463113769. The cubic root of 30023236 is about 310.8034517311.

Adding to 30023236 its reverse (63232003), we get a palindrome (93255239).

The spelling of 30023236 in words is "thirty million, twenty-three thousand, two hundred thirty-six".

Divisors: 1 2 4 29 58 67 116 134 268 1943 3863 3886 7726 7772 15452 112027 224054 258821 448108 517642 1035284 7505809 15011618 30023236