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2768227488 = 25341382153
BaseRepresentation
bin1010010011111111…
…1100110010100000
321010220220112020000
42210333330302200
521132131234423
61134404420000
7125412355035
oct24477746240
97126815200
102768227488
1111a0657314
126530a7600
13351684540
141c391338c
15113060843
hexa4ffcca0

2768227488 has 120 divisors (see below), whose sum is σ = 8767639188. Its totient is φ = 851751936.

The previous prime is 2768227447. The next prime is 2768227489. The reversal of 2768227488 is 8847228672.

It can be written as a sum of positive squares in 2 ways, for example, as 2421820944 + 346406544 = 49212^2 + 18612^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2768227489) 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 19 ways as a sum of consecutive naturals, for example, 7381 + ... + 74772.

Almost surely, 22768227488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2768227488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4383819594).

2768227488 is an abundant number, since it is smaller than the sum of its proper divisors (5999411700).

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

2768227488 is a wasteful number, since it uses less digits than its factorization.

2768227488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82188 (or 82171 counting only the distinct ones).

The product of its digits is 4816896, while the sum is 54.

The square root of 2768227488 is about 52613.9476564912. The cubic root of 2768227488 is about 1404.1082537613.

The spelling of 2768227488 in words is "two billion, seven hundred sixty-eight million, two hundred twenty-seven thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 72 78 81 96 104 108 117 144 156 162 208 216 234 288 312 324 351 416 432 468 624 648 702 864 936 1053 1248 1296 1404 1872 2106 2592 2808 3744 4212 5616 8424 11232 16848 33696 82153 164306 246459 328612 492918 657224 739377 985836 1067989 1314448 1478754 1971672 2135978 2218131 2628896 2957508 3203967 3943344 4271956 4436262 5915016 6407934 6654393 7886688 8543912 8872524 9611901 11830032 12815868 13308786 17087824 17745048 19223802 23660064 25631736 26617572 28835703 34175648 35490096 38447604 51263472 53235144 57671406 70980192 76895208 86507109 102526944 106470288 115342812 153790416 173014218 212940576 230685624 307580832 346028436 461371248 692056872 922742496 1384113744 2768227488