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28306063053 = 3219164325609
BaseRepresentation
bin11010010111001011…
…000011111011001101
32201001200211222201200
4122113023003323031
5430432323004203
621000441100113
72021310365112
oct322713037315
981050758650
1028306063053
1111006042144
12559b787639
13289145c448
1415274a0909
15b0a0719a3
hex6972c3ecd

28306063053 has 24 divisors (see below), whose sum is σ = 41166128640. Its totient is φ = 18741983040.

The previous prime is 28306063043. The next prime is 28306063073. The reversal of 28306063053 is 35036060382.

It is a happy number.

It is not a de Polignac number, because 28306063053 - 26 = 28306062989 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28306062999 and 28306063017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28306063043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1092513 + ... + 1118121.

It is an arithmetic number, because the mean of its divisors is an integer number (1715255360).

Almost surely, 228306063053 is an apocalyptic number.

It is an amenable number.

28306063053 is a deficient number, since it is larger than the sum of its proper divisors (12860065587).

28306063053 is a wasteful number, since it uses less digits than its factorization.

28306063053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26449 (or 26446 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 28306063053 in words is "twenty-eight billion, three hundred six million, sixty-three thousand, fifty-three".

Divisors: 1 3 9 191 573 643 1719 1929 5787 25609 76827 122813 230481 368439 1105317 4891319 14673957 16466587 44021871 49399761 148199283 3145118117 9435354351 28306063053