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28826798034725 = 521153071921389
BaseRepresentation
bin1101000110111110000110…
…00011101000111100100101
310210001211000010012212021022
412203133003003220330211
512234244240244102400
6141150503113300525
76033444633255245
oct643370303507445
9123054003185238
1028826798034725
119204415a830a9
1232969b0404745
131311480a40432
1471931dd2db25
1534ecb7a7bb85
hex1a37c30e8f25

28826798034725 has 6 divisors (see below), whose sum is σ = 35745229563090. Its totient is φ = 23061438427760.

The previous prime is 28826798034721. The next prime is 28826798034761. The reversal of 28826798034725 is 52743089762882.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7949148964 + 28818848885761 = 89158^2 + 5368319^2 .

It is not a de Polignac number, because 28826798034725 - 22 = 28826798034721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28826798034721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 576535960670 + ... + 576535960719.

It is an arithmetic number, because the mean of its divisors is an integer number (5957538260515).

Almost surely, 228826798034725 is an apocalyptic number.

28826798034725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28826798034725 is a deficient number, since it is larger than the sum of its proper divisors (6918431528365).

28826798034725 is a wasteful number, since it uses less digits than its factorization.

28826798034725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153071921399 (or 1153071921394 counting only the distinct ones).

The product of its (nonzero) digits is 650280960, while the sum is 71.

The spelling of 28826798034725 in words is "twenty-eight trillion, eight hundred twenty-six billion, seven hundred ninety-eight million, thirty-four thousand, seven hundred twenty-five".

Divisors: 1 5 25 1153071921389 5765359606945 28826798034725