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465531768 = 2332131926177
BaseRepresentation
bin11011101111110…
…111001101111000
31012102222110112100
4123233313031320
51423134004033
6114105543400
714351645322
oct3357671570
91172873470
10465531768
112198649a9
1210baa4b60
13755a73b0
1445b82612
152ad0a513
hex1bbf7378

465531768 has 96 divisors (see below), whose sum is σ = 1429318800. Its totient is φ = 135696384.

The previous prime is 465531767. The next prime is 465531779. The reversal of 465531768 is 867135564.

465531768 is a `hidden beast` number, since 46 + 5 + 531 + 76 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465531761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4696 + ... + 30872.

Almost surely, 2465531768 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 465531768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714659400).

465531768 is an abundant number, since it is smaller than the sum of its proper divisors (963787032).

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

465531768 is a wasteful number, since it uses less digits than its factorization.

465531768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26221 (or 26214 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 465531768 is about 21576.1852049893. The cubic root of 465531768 is about 775.0263011539.

The spelling of 465531768 in words is "four hundred sixty-five million, five hundred thirty-one thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 18 19 24 26 36 38 39 52 57 72 76 78 104 114 117 152 156 171 228 234 247 312 342 456 468 494 684 741 936 988 1368 1482 1976 2223 2964 4446 5928 8892 17784 26177 52354 78531 104708 157062 209416 235593 314124 340301 471186 497363 628248 680602 942372 994726 1020903 1361204 1492089 1884744 1989452 2041806 2722408 2984178 3062709 3978904 4083612 4476267 5968356 6125418 6465719 8167224 8952534 11936712 12250836 12931438 17905068 19397157 24501672 25862876 35810136 38794314 51725752 58191471 77588628 116382942 155177256 232765884 465531768