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30007476220 = 2251788257283
BaseRepresentation
bin11011111100100101…
…011011111111111100
32212110021100201211011
4123330211123333330
5442423403214340
621441340205004
72111420224261
oct337445337774
985407321734
1030007476220
11117a9490027
125995539764
132aa2ab1cb7
141649433268
15ba96040ea
hex6fc95bffc

30007476220 has 24 divisors (see below), whose sum is σ = 66722506704. Its totient is φ = 11296932096.

The previous prime is 30007476167. The next prime is 30007476251. The reversal of 30007476220 is 2267470003.

It is a happy number.

It is a congruent number.

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, 44128302 + ... + 44128981.

It is an arithmetic number, because the mean of its divisors is an integer number (2780104446).

Almost surely, 230007476220 is an apocalyptic number.

It is an amenable number.

30007476220 is an abundant number, since it is smaller than the sum of its proper divisors (36715030484).

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

30007476220 is a wasteful number, since it uses less digits than its factorization.

30007476220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88257309 (or 88257307 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The spelling of 30007476220 in words is "thirty billion, seven million, four hundred seventy-six thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 88257283 176514566 353029132 441286415 882572830 1500373811 1765145660 3000747622 6001495244 7501869055 15003738110 30007476220