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28292395146 = 2317277376423
BaseRepresentation
bin11010010110010110…
…111011000010001010
32201000202010120212220
4122112112323002022
5430420323121041
620555232114510
72021053251021
oct322626730212
981022116786
1028292395146
1110aa9357254
125597095a36
13288b685222
1415257438b8
15b08c71d66
hex6965bb08a

28292395146 has 16 divisors (see below), whose sum is σ = 59913307584. Its totient is φ = 8876045504.

The previous prime is 28292395141. The next prime is 28292395147. The reversal of 28292395146 is 64159329282.

28292395146 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×282923951462 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (28292395141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138688110 + ... + 138688313.

It is an arithmetic number, because the mean of its divisors is an integer number (3744581724).

Almost surely, 228292395146 is an apocalyptic number.

28292395146 is an abundant number, since it is smaller than the sum of its proper divisors (31620912438).

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

28292395146 is a wasteful number, since it uses less digits than its factorization.

28292395146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277376445.

The product of its digits is 1866240, while the sum is 51.

The spelling of 28292395146 in words is "twenty-eight billion, two hundred ninety-two million, three hundred ninety-five thousand, one hundred forty-six".

Divisors: 1 2 3 6 17 34 51 102 277376423 554752846 832129269 1664258538 4715399191 9430798382 14146197573 28292395146