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28028654574074 = 2711182004250481
BaseRepresentation
bin1100101111101111011011…
…11111111101100111111010
310200020111212010111002111022
412113313231333331213322
512133210141032332244
6135340104113102442
75622001121632340
oct627675577754772
9120214763432438
1028028654574074
118a2698188a950
123188183857a22
1312841245bb86b
146cc84639b990
153391527606ee
hex197dedffd9fa

28028654574074 has 16 divisors (see below), whose sum is σ = 52417224138816. Its totient is φ = 10920255028800.

The previous prime is 28028654574071. The next prime is 28028654574083. The reversal of 28028654574074 is 47047545682082.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28028654573998 and 28028654574016.

It is not an unprimeable number, because it can be changed into a prime (28028654574071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91002125087 + ... + 91002125394.

It is an arithmetic number, because the mean of its divisors is an integer number (3276076508676).

Almost surely, 228028654574074 is an apocalyptic number.

28028654574074 is a deficient number, since it is larger than the sum of its proper divisors (24388569564742).

28028654574074 is a wasteful number, since it uses less digits than its factorization.

28028654574074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182004250501.

The product of its (nonzero) digits is 120422400, while the sum is 62.

The spelling of 28028654574074 in words is "twenty-eight trillion, twenty-eight billion, six hundred fifty-four million, five hundred seventy-four thousand, seventy-four".

Divisors: 1 2 7 11 14 22 77 154 182004250481 364008500962 1274029753367 2002046755291 2548059506734 4004093510582 14014327287037 28028654574074