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28430776230 = 235947692541
BaseRepresentation
bin11010011110100110…
…110011011110100110
32201101101112002001020
4122132212303132212
5431211234314410
621021054112010
72024353416303
oct323646633646
981341462036
1028430776230
111106a482a8a
1256154ab606
1328b124671c
141539c860aa
15b15ea8a70
hex69e9b37a6

28430776230 has 16 divisors (see below), whose sum is σ = 68233863024. Its totient is φ = 7581540320.

The previous prime is 28430776219. The next prime is 28430776237. The reversal of 28430776230 is 3267703482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28430776237) 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, 473846241 + ... + 473846300.

It is an arithmetic number, because the mean of its divisors is an integer number (4264616439).

Almost surely, 228430776230 is an apocalyptic number.

28430776230 is an abundant number, since it is smaller than the sum of its proper divisors (39803086794).

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

28430776230 is a wasteful number, since it uses less digits than its factorization.

28430776230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947692551.

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 28430776230 in words is "twenty-eight billion, four hundred thirty million, seven hundred seventy-six thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 947692541 1895385082 2843077623 4738462705 5686155246 9476925410 14215388115 28430776230