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30302212220 = 2257347623759
BaseRepresentation
bin11100001110001001…
…110001000001111100
32220012210221212121022
4130032021301001330
5444024331242340
621530505323312
72121626361020
oct341611610174
986183855538
1030302212220
111193a8995a5
125a58196538
132b1bb88ab7
141676636380
15bc54233b5
hex70e27107c

30302212220 has 48 divisors (see below), whose sum is σ = 72935009280. Its totient is φ = 10359372864.

The previous prime is 30302212169. The next prime is 30302212243. The reversal of 30302212220 is 2221220303.

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, 263300 + ... + 360459.

It is an arithmetic number, because the mean of its divisors is an integer number (1519479360).

Almost surely, 230302212220 is an apocalyptic number.

It is an amenable number.

30302212220 is an abundant number, since it is smaller than the sum of its proper divisors (42632797060).

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

30302212220 is a wasteful number, since it uses less digits than its factorization.

30302212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624122 (or 624120 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 30302212220 its reverse (2221220303), we get a palindrome (32523432523).

The spelling of 30302212220 in words is "thirty billion, three hundred two million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 347 694 1388 1735 2429 3470 4858 6940 9716 12145 24290 48580 623759 1247518 2495036 3118795 4366313 6237590 8732626 12475180 17465252 21831565 43663130 87326260 216444373 432888746 865777492 1082221865 1515110611 2164443730 3030221222 4328887460 6060442444 7575553055 15151106110 30302212220