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289401735168 = 21134713191009
BaseRepresentation
bin1000011011000011011…
…00000000100000000000
31000122222220102101120000
410031201230000200000
514220143321011133
6340541015320000
726623434106140
oct4154154004000
91018886371500
10289401735168
1110180980a047
1248108080000
13213a12025a0
1410015768920
1577dc027413
hex4361b00800

289401735168 has 960 divisors, whose sum is σ = 1121007888000. Its totient is φ = 72236924928.

The previous prime is 289401735131. The next prime is 289401735229. The reversal of 289401735168 is 861537104982.

289401735168 is a `hidden beast` number, since 2 + 8 + 9 + 401 + 73 + 5 + 168 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 286819848 + ... + 286820856.

It is an arithmetic number, because the mean of its divisors is an integer number (1167716550).

It is a 1-persistent number, because it is pandigital, but 2⋅289401735168 = 578803470336 is not.

Almost surely, 2289401735168 is an apocalyptic number.

289401735168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289401735168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560503944000).

289401735168 is an abundant number, since it is smaller than the sum of its proper divisors (831606152832).

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

289401735168 is a wasteful number, since it uses less digits than its factorization.

289401735168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 289401735168 in words is "two hundred eighty-nine billion, four hundred one million, seven hundred thirty-five thousand, one hundred sixty-eight".