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2031485028 = 2232329325121
BaseRepresentation
bin111100100010110…
…0000000001100100
312020120121010120020
41321011200001210
513130030010103
6533325435140
7101225223606
oct17105400144
95216533506
102031485028
119527a1851
1248840bab0
13264b4c261
14153b33176
15bd531753
hex79160064

2031485028 has 48 divisors (see below), whose sum is σ = 4963303296. Its totient is φ = 645483520.

The previous prime is 2031485021. The next prime is 2031485039. The reversal of 2031485028 is 8205841302.

It is a self number, because there is not a number n which added to its sum of digits gives 2031485028.

It is not an unprimeable number, because it can be changed into a prime (2031485021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68308 + ... + 93428.

It is an arithmetic number, because the mean of its divisors is an integer number (103402152).

Almost surely, 22031485028 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 2031485028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2481651648).

2031485028 is an abundant number, since it is smaller than the sum of its proper divisors (2931818268).

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

2031485028 is a wasteful number, since it uses less digits than its factorization.

2031485028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25444 (or 25442 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2031485028 is about 45071.9982694355. The cubic root of 2031485028 is about 1266.4980981896.

The spelling of 2031485028 in words is "two billion, thirty-one million, four hundred eighty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 293 586 879 1172 1758 3516 6739 13478 20217 25121 26956 40434 50242 75363 80868 100484 150726 301452 577783 1155566 1733349 2311132 3466698 6933396 7360453 14720906 22081359 29441812 44162718 88325436 169290419 338580838 507871257 677161676 1015742514 2031485028