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464920128 = 2633436257
BaseRepresentation
bin11011101101100…
…001111001000000
31012101211101112000
4123231201321000
51423004421003
6114044504000
714343520161
oct3355417100
91171741460
10464920128
11219487412
1210b84b000
1375421b8a
1445a63768
152ac391a3
hex1bb61e40

464920128 has 112 divisors (see below), whose sum is σ = 1398788160. Its totient is φ = 151345152.

The previous prime is 464920123. The next prime is 464920129. The reversal of 464920128 is 821029464.

464920128 is a `hidden beast` number, since 4 + 649 + 2 + 0 + 1 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 464920092 and 464920101.

It is not an unprimeable number, because it can be changed into a prime (464920121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71176 + ... + 77432.

It is an arithmetic number, because the mean of its divisors is an integer number (12489180).

Almost surely, 2464920128 is an apocalyptic number.

464920128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 464920128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (699394080).

464920128 is an abundant number, since it is smaller than the sum of its proper divisors (933868032).

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

464920128 is a wasteful number, since it uses less digits than its factorization.

464920128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6321 (or 6305 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 464920128 is about 21562.0065856590. The cubic root of 464920128 is about 774.6867290230.

The spelling of 464920128 in words is "four hundred sixty-four million, nine hundred twenty thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 43 48 54 64 72 86 96 108 129 144 172 192 216 258 288 344 387 432 516 576 688 774 864 1032 1161 1376 1548 1728 2064 2322 2752 3096 4128 4644 6192 6257 8256 9288 12384 12514 18576 18771 24768 25028 37152 37542 50056 56313 74304 75084 100112 112626 150168 168939 200224 225252 269051 300336 337878 400448 450504 538102 600672 675756 807153 901008 1076204 1201344 1351512 1614306 1802016 2152408 2421459 2703024 3228612 3604032 4304816 4842918 5406048 6457224 7264377 8609632 9685836 10812096 12914448 14528754 17219264 19371672 25828896 29057508 38743344 51657792 58115016 77486688 116230032 154973376 232460064 464920128