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28736796270 = 23572134136677
BaseRepresentation
bin11010110000110110…
…001011011001101110
32202011201100111121210
4122300312023121232
5432323104440040
621111305135250
72035060511100
oct326066133156
982151314553
1028736796270
1111207199406
12569ba8a526
13292c771680
141568785570
15b32ca6480
hex6b0d8b66e

28736796270 has 192 divisors, whose sum is σ = 88509589056. Its totient is φ = 5915105280.

The previous prime is 28736796251. The next prime is 28736796271. The reversal of 28736796270 is 7269763782.

It is a self number, because there is not a number n which added to its sum of digits gives 28736796270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28736796271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 765172 + ... + 801848.

It is an arithmetic number, because the mean of its divisors is an integer number (460987443).

Almost surely, 228736796270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28736796270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44254794528).

28736796270 is an abundant number, since it is smaller than the sum of its proper divisors (59772792786).

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

28736796270 is a wasteful number, since it uses less digits than its factorization.

28736796270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36755 (or 36748 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 57.

The spelling of 28736796270 in words is "twenty-eight billion, seven hundred thirty-six million, seven hundred ninety-six thousand, two hundred seventy".