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30289991897088 = 21236711472803
BaseRepresentation
bin1101110001100011100000…
…01101010001000000000000
310222020200202121121111000000
412320301300031101000000
512432232400411201323
6144231010304000000
76244244144011140
oct670616015210000
9128220677544000
1030289991897088
119718a05849520
1234924a1000000
1313b94459a4471
1476a08725a920
15377da3a28e43
hex1b8c70351000

30289991897088 has 1456 divisors, whose sum is σ = 115677146658816. Its totient is φ = 7697388994560.

The previous prime is 30289991897071. The next prime is 30289991897149. The reversal of 30289991897088 is 88079819998203.

30289991897088 is a `hidden beast` number, since 3 + 0 + 289 + 99 + 189 + 70 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 30289991896998 and 30289991897016.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 10806274695 + ... + 10806277497.

Almost surely, 230289991897088 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 30289991897088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57838573329408).

30289991897088 is an abundant number, since it is smaller than the sum of its proper divisors (85387154761728).

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

30289991897088 is an equidigital number, since it uses as much as digits as its factorization.

30289991897088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910 (or 2873 counting only the distinct ones).

The product of its (nonzero) digits is 1128701952, while the sum is 81.

The spelling of 30289991897088 in words is "thirty trillion, two hundred eighty-nine billion, nine hundred ninety-one million, eight hundred ninety-seven thousand, eighty-eight".