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30215230552780 = 225721329677915451
BaseRepresentation
bin1101101111011000010000…
…00101010111101011001100
310221222112210100221200121221
412313230020011113223030
512430021243010142110
6144132404004533124
76235656403040200
oct667541005275314
9127875710850557
1030215230552780
11969a230a34a59
12347bab76b11a4
1313b238cc9b220
147665d4148b00
15375e7a4047da
hex1b7b08157acc

30215230552780 has 576 divisors, whose sum is σ = 84519522662400. Its totient is φ = 8979363993600.

The previous prime is 30215230552763. The next prime is 30215230552811. The reversal of 30215230552780 is 8725503251203.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1955544055 + ... + 1955559505.

It is an arithmetic number, because the mean of its divisors is an integer number (146735282400).

Almost surely, 230215230552780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30215230552780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42259761331200).

30215230552780 is an abundant number, since it is smaller than the sum of its proper divisors (54304292109620).

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

30215230552780 is a wasteful number, since it uses less digits than its factorization.

30215230552780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15662 (or 15653 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 30215230552780 in words is "thirty trillion, two hundred fifteen billion, two hundred thirty million, five hundred fifty-two thousand, seven hundred eighty".