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28005057555033 = 3133855971862251
BaseRepresentation
bin1100101111000011011111…
…00000011110101001011001
310200011020221121112022202010
412113201233200132221121
512132313324213230113
6135321202411100133
75620204301400426
oct627415740365131
9120136847468663
1028005057555033
118a17972999219
123183699141649
131281b339388c0
146cb6484a0d4d
15338720d211c3
hex19786f81ea59

28005057555033 has 16 divisors (see below), whose sum is σ = 40212516214976. Its totient is φ = 17233827624000.

The previous prime is 28005057555017. The next prime is 28005057555043. The reversal of 28005057555033 is 33055575050082.

It is not a de Polignac number, because 28005057555033 - 24 = 28005057555017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28005057555043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14107158 + ... + 15969408.

It is an arithmetic number, because the mean of its divisors is an integer number (2513282263436).

Almost surely, 228005057555033 is an apocalyptic number.

It is an amenable number.

28005057555033 is a deficient number, since it is larger than the sum of its proper divisors (12207458659943).

28005057555033 is a wasteful number, since it uses less digits than its factorization.

28005057555033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247864.

The product of its (nonzero) digits is 3150000, while the sum is 48.

The spelling of 28005057555033 in words is "twenty-eight trillion, five billion, fifty-seven million, five hundred fifty-five thousand, thirty-three".

Divisors: 1 3 13 39 385597 1156791 1862251 5012761 5586753 15038283 24209263 72627789 718078398847 2154235196541 9335019185011 28005057555033