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30431024320 = 265432211557
BaseRepresentation
bin11100010101110101…
…001001010011000000
32220112210100012120211
4130111311021103000
5444310320234240
621551350243504
72125052303344
oct342565112300
986483305524
1030431024320
11119a6579a84
125a93356594
132b3c779988
1416897a7624
15bd18b9bea
hex715d494c0

30431024320 has 56 divisors (see below), whose sum is σ = 74149116624. Its totient is φ = 11889325056.

The previous prime is 30431024297. The next prime is 30431024347. The reversal of 30431024320 is 2342013403.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30431024291 and 30431024300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092019 + ... + 1119538.

Almost surely, 230431024320 is an apocalyptic number.

It is an amenable number.

30431024320 is an abundant number, since it is smaller than the sum of its proper divisors (43718092304).

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

30431024320 is a wasteful number, since it uses less digits than its factorization.

30431024320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211617 (or 2211607 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30431024320 its reverse (2342013403), we get a palindrome (32773037723).

The spelling of 30431024320 in words is "thirty billion, four hundred thirty-one million, twenty-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 43 64 80 86 160 172 215 320 344 430 688 860 1376 1720 2752 3440 6880 13760 2211557 4423114 8846228 11057785 17692456 22115570 35384912 44231140 70769824 88462280 95096951 141539648 176924560 190193902 353849120 380387804 475484755 707698240 760775608 950969510 1521551216 1901939020 3043102432 3803878040 6086204864 7607756080 15215512160 30431024320