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28418228941608 = 233211109803940949
BaseRepresentation
bin1100111011000101000100…
…11100001111001100101000
310201121202102020101110101100
412131202202130033030220
512211101013102112413
6140235053143521400
75662102130261412
oct635424234171450
9121552366343340
1028418228941608
119067115415270
12322b787459260
1312b1a9acc50bc
14703641a839b2
15344353c22a73
hex19d8a270f328

28418228941608 has 192 divisors, whose sum is σ = 84745861200000. Its totient is φ = 8531309422080.

The previous prime is 28418228941547. The next prime is 28418228941621. The reversal of 28418228941608 is 80614982281482.

28418228941608 is a `hidden beast` number, since 2 + 8 + 4 + 18 + 2 + 2 + 8 + 9 + 4 + 1 + 608 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 693970318 + ... + 694011266.

It is an arithmetic number, because the mean of its divisors is an integer number (441384693750).

Almost surely, 228418228941608 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 28418228941608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42372930600000).

28418228941608 is an abundant number, since it is smaller than the sum of its proper divisors (56327632258392).

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

28418228941608 is a wasteful number, since it uses less digits than its factorization.

28418228941608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49120 (or 49113 counting only the distinct ones).

The product of its (nonzero) digits is 28311552, while the sum is 63.

The spelling of 28418228941608 in words is "twenty-eight trillion, four hundred eighteen billion, two hundred twenty-eight million, nine hundred forty-one thousand, six hundred eight".