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28001629481352 = 2331166734561723
BaseRepresentation
bin1100101110111101000110…
…01011011010100110001000
310200010221002201000010201020
412113132203023122212020
512132234314121400402
6135315434311352440
75620023324266502
oct627364313324610
9120127081003636
1028001629481352
118a1647392877a
123182aa1082720
131281708663837
146cb4010a6d72
153385bedc08bc
hex1977a32da988

28001629481352 has 16 divisors (see below), whose sum is σ = 70004073703440. Its totient is φ = 9333876493776.

The previous prime is 28001629481321. The next prime is 28001629481363. The reversal of 28001629481352 is 25318492610082.

It is a super-2 number, since 2×280016294813522 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28001629481295 and 28001629481304.

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 3 ways as a sum of consecutive naturals, for example, 583367280838 + ... + 583367280885.

It is an arithmetic number, because the mean of its divisors is an integer number (4375254606465).

Almost surely, 228001629481352 is an apocalyptic number.

It is an amenable number.

28001629481352 is an abundant number, since it is smaller than the sum of its proper divisors (42002444222088).

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

28001629481352 is a wasteful number, since it uses less digits than its factorization.

28001629481352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166734561732 (or 1166734561728 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 28001629481352 in words is "twenty-eight trillion, one billion, six hundred twenty-nine million, four hundred eighty-one thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 1166734561723 2333469123446 3500203685169 4666938246892 7000407370338 9333876493784 14000814740676 28001629481352