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28374153397 is a prime number
BaseRepresentation
bin11010011011001110…
…110011100010110101
32201020102222100010021
4122123032303202311
5431102240402042
621011312325141
72023065216202
oct323316634265
981212870107
1028374153397
1111040519457
1255ba5437b1
1328a25ac9a5
141532546ca9
15b11021867
hex69b3b38b5

28374153397 has 2 divisors, whose sum is σ = 28374153398. Its totient is φ = 28374153396.

The previous prime is 28374153371. The next prime is 28374153449. The reversal of 28374153397 is 79335147382.

It is an a-pointer prime, because the next prime (28374153449) can be obtained adding 28374153397 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17692724196 + 10681429201 = 133014^2 + 103351^2 .

It is a cyclic number.

It is not a de Polignac number, because 28374153397 - 215 = 28374120629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28374153097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14187076698 + 14187076699.

It is an arithmetic number, because the mean of its divisors is an integer number (14187076699).

Almost surely, 228374153397 is an apocalyptic number.

It is an amenable number.

28374153397 is a deficient number, since it is larger than the sum of its proper divisors (1).

28374153397 is an equidigital number, since it uses as much as digits as its factorization.

28374153397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 52.

The spelling of 28374153397 in words is "twenty-eight billion, three hundred seventy-four million, one hundred fifty-three thousand, three hundred ninety-seven".