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30531044334 = 2371282956663
BaseRepresentation
bin11100011011110010…
…101100001111101110
32220210202112202020210
4130123302230033232
51000011421404314
622005322123250
72130405411030
oct343362541756
986722482223
1030531044334
1111a47a8454a
125b00950526
132b573c960b
141698ba1c50
15bda575559
hex71bcac3ee

30531044334 has 32 divisors (see below), whose sum is σ = 69791915520. Its totient is φ = 8722321632.

The previous prime is 30531044321. The next prime is 30531044363. The reversal of 30531044334 is 43344013503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510487 + ... + 567149.

It is an arithmetic number, because the mean of its divisors is an integer number (2180997360).

Almost surely, 230531044334 is an apocalyptic number.

30531044334 is an abundant number, since it is smaller than the sum of its proper divisors (39260871186).

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

30531044334 is a wasteful number, since it uses less digits than its factorization.

30531044334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69504.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 30531044334 its reverse (43344013503), we get a palindrome (73875057837).

The spelling of 30531044334 in words is "thirty billion, five hundred thirty-one million, forty-four thousand, three hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 12829 25658 38487 56663 76974 89803 113326 169989 179606 269409 339978 396641 538818 793282 1189923 2379846 726929627 1453859254 2180788881 4361577762 5088507389 10177014778 15265522167 30531044334