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30302101240 = 2354118476891
BaseRepresentation
bin11100001110001001…
…010101111011111000
32220012210202020100221
4130032021111323320
5444024314214430
621530503105424
72121625416325
oct341611257370
986183666327
1030302101240
111193a823184
125a58142274
132b1bb4a428
141676607b4c
15bc540057a
hex70e255ef8

30302101240 has 32 divisors (see below), whose sum is σ = 69842651760. Its totient is φ = 11825209600.

The previous prime is 30302101237. The next prime is 30302101301. The reversal of 30302101240 is 4210120303.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9236806 + ... + 9240085.

Almost surely, 230302101240 is an apocalyptic number.

It is an amenable number.

30302101240 is an abundant number, since it is smaller than the sum of its proper divisors (39540550520).

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

30302101240 is a wasteful number, since it uses less digits than its factorization.

30302101240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18476943 (or 18476939 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30302101240 its reverse (4210120303), we get a palindrome (34512221543).

The spelling of 30302101240 in words is "thirty billion, three hundred two million, one hundred one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 18476891 36953782 73907564 92384455 147815128 184768910 369537820 739075640 757552531 1515105062 3030210124 3787762655 6060420248 7575525310 15151050620 30302101240