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2028471498 = 23437675051
BaseRepresentation
bin111100011101000…
…0000010011001010
312020100221000210000
41320322000103022
513123242041443
6533141103430
7101160503034
oct17072002312
95210830700
102028471498
11951023729
124873b7b76
132643356c1
1415358ac54
15bd1388d3
hex78e804ca

2028471498 has 80 divisors (see below), whose sum is σ = 4738735584. Its totient is φ = 647935200.

The previous prime is 2028471479. The next prime is 2028471503. The reversal of 2028471498 is 8941748202.

It is a super-2 number, since 2×20284714982 = 8229393236396728008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 399073 + ... + 404123.

Almost surely, 22028471498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2028471498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2369367792).

2028471498 is an abundant number, since it is smaller than the sum of its proper divisors (2710264086).

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

2028471498 is a wasteful number, since it uses less digits than its factorization.

2028471498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5169 (or 5160 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 2028471498 is about 45038.5556828813. Note that the first 3 decimals coincide. The cubic root of 2028471498 is about 1265.8715419626.

The spelling of 2028471498 in words is "two billion, twenty-eight million, four hundred seventy-one thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 9 18 27 37 54 67 74 81 111 134 162 201 222 333 402 603 666 999 1206 1809 1998 2479 2997 3618 4958 5051 5427 5994 7437 10102 10854 14874 15153 22311 30306 44622 45459 66933 90918 133866 136377 186887 200799 272754 338417 373774 401598 409131 560661 676834 818262 1015251 1121322 1681983 2030502 3045753 3363966 5045949 6091506 9137259 10091898 12521429 15137847 18274518 25042858 27411777 30275694 37564287 54823554 75128574 112692861 225385722 338078583 676157166 1014235749 2028471498