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28734876060 = 22351143537691
BaseRepresentation
bin11010110000101110…
…110110100110011100
32202011120201221120220
4122300232312212130
5432322112013220
621111200041340
72035035262602
oct326056664634
982146657526
1028734876060
11112060a7760
12569b303250
13292c24b657
141568405872
15b32a27540
hex6b0bb699c

28734876060 has 48 divisors (see below), whose sum is σ = 87771987072. Its totient is φ = 6966030400.

The previous prime is 28734876017. The next prime is 28734876067. The reversal of 28734876060 is 6067843782.

It is a super-2 number, since 2×287348760602 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28734875994 and 28734876012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28734876067) 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 15 ways as a sum of consecutive naturals, for example, 21768186 + ... + 21769505.

It is an arithmetic number, because the mean of its divisors is an integer number (1828583064).

Almost surely, 228734876060 is an apocalyptic number.

28734876060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28734876060 is an abundant number, since it is smaller than the sum of its proper divisors (59037111012).

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

28734876060 is a wasteful number, since it uses less digits than its factorization.

28734876060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43537714 (or 43537712 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 28734876060 in words is "twenty-eight billion, seven hundred thirty-four million, eight hundred seventy-six thousand, sixty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 43537691 87075382 130613073 174150764 217688455 261226146 435376910 478914601 522452292 653065365 870753820 957829202 1306130730 1436743803 1915658404 2394573005 2612261460 2873487606 4789146010 5746975212 7183719015 9578292020 14367438030 28734876060