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30545446236 = 2232545453853
BaseRepresentation
bin11100011100101001…
…101000010101011100
32220211202122102221120
4130130221220111130
51000024113234421
622010554530540
72130642003054
oct343451502534
986752572846
1030545446236
1111a55120948
125b05736a50
132b5a39c956
14169aa70564
15bdb96c8c6
hex71ca6855c

30545446236 has 12 divisors (see below), whose sum is σ = 71272707912. Its totient is φ = 10181815408.

The previous prime is 30545446231. The next prime is 30545446247. The reversal of 30545446236 is 63264454503.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30545446231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272726915 + ... + 1272726938.

It is an arithmetic number, because the mean of its divisors is an integer number (5939392326).

Almost surely, 230545446236 is an apocalyptic number.

It is an amenable number.

30545446236 is an abundant number, since it is smaller than the sum of its proper divisors (40727261676).

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

30545446236 is a wasteful number, since it uses less digits than its factorization.

30545446236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545453860 (or 2545453858 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

The spelling of 30545446236 in words is "thirty billion, five hundred forty-five million, four hundred forty-six thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 12 2545453853 5090907706 7636361559 10181815412 15272723118 30545446236