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620080128 = 21032611103
BaseRepresentation
bin100100111101011…
…010110000000000
31121012210100000200
4210331122300000
52232220031003
6141310245200
721236410533
oct4475326000
91535710020
10620080128
11299023418
121537b6800
139b609625
145c4d2a1a
15396876a3
hex24f5ac00

620080128 has 132 divisors (see below), whose sum is σ = 1821469728. Its totient is φ = 203120640.

The previous prime is 620080121. The next prime is 620080157. The reversal of 620080128 is 821080026.

It is not an unprimeable number, because it can be changed into a prime (620080121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 561625 + ... + 562727.

Almost surely, 2620080128 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 620080128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (910734864).

620080128 is an abundant number, since it is smaller than the sum of its proper divisors (1201389600).

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

620080128 is a wasteful number, since it uses less digits than its factorization.

620080128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 620080128 is about 24901.4081529539. The cubic root of 620080128 is about 852.7386307768.

The spelling of 620080128 in words is "six hundred twenty million, eighty thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 61 64 72 96 122 128 144 183 192 244 256 288 366 384 488 512 549 576 732 768 976 1024 1098 1103 1152 1464 1536 1952 2196 2206 2304 2928 3072 3309 3904 4392 4412 4608 5856 6618 7808 8784 8824 9216 9927 11712 13236 15616 17568 17648 19854 23424 26472 31232 35136 35296 39708 46848 52944 62464 67283 70272 70592 79416 93696 105888 134566 140544 141184 158832 187392 201849 211776 269132 281088 282368 317664 403698 423552 538264 562176 564736 605547 635328 807396 847104 1076528 1129472 1211094 1270656 1614792 1694208 2153056 2422188 2541312 3229584 3388416 4306112 4844376 5082624 6459168 8612224 9688752 10165248 12918336 17224448 19377504 25836672 34448896 38755008 51673344 68897792 77510016 103346688 155020032 206693376 310040064 620080128