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28758056060860 = 22571910811299271
BaseRepresentation
bin1101000100111110000011…
…01101110100011110111100
310202211020120101001202211021
412202133001231310132330
512232132444322421420
6141055134002233524
76025462303160260
oct642370155643674
9122736511052737
1028758056060860
11918824aa1a755
1232856069558a4
131307b47125959
14715c7c4300a0
1534d0e2b197aa
hex1a27c1b747bc

28758056060860 has 48 divisors (see below), whose sum is σ = 72651931107840. Its totient is φ = 9340962569280.

The previous prime is 28758056060827. The next prime is 28758056060897. The reversal of 28758056060860 is 6806065085782.

28758056060860 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5405646976 + ... + 5405652295.

It is an arithmetic number, because the mean of its divisors is an integer number (1513581898080).

Almost surely, 228758056060860 is an apocalyptic number.

28758056060860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28758056060860 is an abundant number, since it is smaller than the sum of its proper divisors (43893875046980).

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

28758056060860 is a wasteful number, since it uses less digits than its factorization.

28758056060860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10811299306 (or 10811299304 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 61.

The spelling of 28758056060860 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty thousand, eight hundred sixty".

Divisors: 1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 380 532 665 1330 2660 10811299271 21622598542 43245197084 54056496355 75679094897 108112992710 151358189794 205414686149 216225985420 302716379588 378395474485 410829372298 756790948970 821658744596 1027073430745 1437902803043 1513581897940 2054146861490 2875805606086 4108293722980 5751611212172 7189514015215 14379028030430 28758056060860