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30231301220 = 2252767546283
BaseRepresentation
bin11100001001111011…
…010000110001100100
32220000212112012222222
4130021323100301210
5443403203114340
621515453411512
72120105551301
oct341173206144
986025465888
1030231301220
111190386606a
125a38499b98
132b0a28b723
14166b0580a8
15bbe0b78b5
hex709ed0c64

30231301220 has 24 divisors (see below), whose sum is σ = 63508792704. Its totient is φ = 12088128096.

The previous prime is 30231301213. The next prime is 30231301249. The reversal of 30231301220 is 2210313203.

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, 217802 + ... + 328481.

It is an arithmetic number, because the mean of its divisors is an integer number (2646199696).

Almost surely, 230231301220 is an apocalyptic number.

It is an amenable number.

30231301220 is an abundant number, since it is smaller than the sum of its proper divisors (33277491484).

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

30231301220 is a wasteful number, since it uses less digits than its factorization.

30231301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549059 (or 549057 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30231301220 its reverse (2210313203), we get a palindrome (32441614423).

The spelling of 30231301220 in words is "thirty billion, two hundred thirty-one million, three hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 2767 5534 11068 13835 27670 55340 546283 1092566 2185132 2731415 5462830 10925660 1511565061 3023130122 6046260244 7557825305 15115650610 30231301220