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3020491908 = 2232723375081
BaseRepresentation
bin1011010000001001…
…0000110010000100
321210111120212221200
42310002100302010
522141221220113
61215415342500
7134564520600
oct26402206204
97714525850
103020491908
11130aa97305
12703681a30
13391a0a825
1420921c500
1512a290873
hexb4090c84

3020491908 has 108 divisors (see below), whose sum is σ = 8909792892. Its totient is φ = 860267520.

The previous prime is 3020491907. The next prime is 3020491939. The reversal of 3020491908 is 8091940203.

It can be written as a sum of positive squares in 2 ways, for example, as 601622784 + 2418869124 = 24528^2 + 49182^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3020491907) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 591928 + ... + 597008.

Almost surely, 23020491908 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 3020491908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4454896446).

3020491908 is an abundant number, since it is smaller than the sum of its proper divisors (5889300984).

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

3020491908 is a wasteful number, since it uses less digits than its factorization.

3020491908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442 (or 5430 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 3020491908 is about 54959.0020651758. The cubic root of 3020491908 is about 1445.5259489544.

The spelling of 3020491908 in words is "three billion, twenty million, four hundred ninety-one thousand, nine hundred eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 147 196 252 294 337 441 588 674 882 1011 1348 1764 2022 2359 3033 4044 4718 5081 6066 7077 9436 10162 12132 14154 15243 16513 20324 21231 28308 30486 33026 35567 42462 45729 49539 60972 66052 71134 84924 91458 99078 106701 142268 148617 182916 198156 213402 248969 297234 320103 426804 497938 594468 640206 746907 995876 1280412 1493814 1712297 2240721 2987628 3424594 4481442 5136891 6849188 8962884 10273782 11986079 15410673 20547564 23972158 30821346 35958237 47944316 61642692 71916474 83902553 107874711 143832948 167805106 215749422 251707659 335610212 431498844 503415318 755122977 1006830636 1510245954 3020491908