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28094030297088 = 21137798399623
BaseRepresentation
bin1100110001101001001101…
…01100100011100000000000
310200110202121021102220212220
412120310212230203200000
512140243033224001323
6135430115213451040
75626504155255030
oct630644654434000
9120422537386786
1028094030297088
118a5167a7691a8
123198989aa0a80
13128a342998b32
146d1a88b978c0
1533abcbdd50e3
hex198d26b23800

28094030297088 has 384 divisors, whose sum is σ = 87727778611200. Its totient is φ = 7829696249856.

The previous prime is 28094030297063. The next prime is 28094030297101. The reversal of 28094030297088 is 88079203049082.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281953645 + ... + 282053267.

It is an arithmetic number, because the mean of its divisors is an integer number (228457756800).

Almost surely, 228094030297088 is an apocalyptic number.

28094030297088 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 28094030297088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43863889305600).

28094030297088 is an abundant number, since it is smaller than the sum of its proper divisors (59633748314112).

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

28094030297088 is an equidigital number, since it uses as much as digits as its factorization.

28094030297088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99817 (or 99797 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 28094030297088 in words is "twenty-eight trillion, ninety-four billion, thirty million, two hundred ninety-seven thousand, eighty-eight".