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30349493960 = 2354118505789
BaseRepresentation
bin11100010000111110…
…001000011011001000
32220100002221000221212
4130100332020123020
5444123432301320
621535314552252
72123042304452
oct342076103310
986302830855
1030349493960
1111964553015
125a6bb98688
132b28901b66
14167ca232d2
15bc96629c5
hex710f886c8

30349493960 has 32 divisors (see below), whose sum is σ = 69951886200. Its totient is φ = 11843704320.

The previous prime is 30349493959. The next prime is 30349493963. The reversal of 30349493960 is 6939494303.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22857206596 + 7492287364 = 151186^2 + 86558^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30349493899 and 30349493908.

It is not an unprimeable number, because it can be changed into a prime (30349493963) 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, 9251255 + ... + 9254534.

Almost surely, 230349493960 is an apocalyptic number.

It is an amenable number.

30349493960 is an abundant number, since it is smaller than the sum of its proper divisors (39602392240).

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

30349493960 is a wasteful number, since it uses less digits than its factorization.

30349493960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18505841 (or 18505837 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 50.

The spelling of 30349493960 in words is "thirty billion, three hundred forty-nine million, four hundred ninety-three thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 18505789 37011578 74023156 92528945 148046312 185057890 370115780 740231560 758737349 1517474698 3034949396 3793686745 6069898792 7587373490 15174746980 30349493960