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2183021040 = 243515535857
BaseRepresentation
bin1000001000011110…
…0100000111110000
312122010201221220010
42002013210013300
513432323133130
61000341414520
7105045241554
oct20207440760
95563657803
102183021040
11a20293022
1250b10a440
1328a368335
14169cdb864
15cb9b60b0
hex821e41f0

2183021040 has 80 divisors (see below), whose sum is σ = 6772879008. Its totient is φ = 581664768.

The previous prime is 2183021039. The next prime is 2183021041. The reversal of 2183021040 is 401203812.

It is an interprime number because it is at equal distance from previous prime (2183021039) and next prime (2183021041).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×21830210403 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2183020998 and 2183021016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183021041) 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, 369792 + ... + 375648.

Almost surely, 22183021040 is an apocalyptic number.

2183021040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2183021040 is an abundant number, since it is smaller than the sum of its proper divisors (4589857968).

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

2183021040 is a wasteful number, since it uses less digits than its factorization.

2183021040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7426 (or 7420 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2183021040 is about 46722.8107031244. The cubic root of 2183021040 is about 1297.2369401471.

Adding to 2183021040 its reverse (401203812), we get a palindrome (2584224852).

The spelling of 2183021040 in words is "two billion, one hundred eighty-three million, twenty-one thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 1553 3106 4659 5857 6212 7765 9318 11714 12424 15530 17571 18636 23295 23428 24848 29285 31060 35142 37272 46590 46856 58570 62120 70284 74544 87855 93180 93712 117140 124240 140568 175710 186360 234280 281136 351420 372720 468560 702840 1405680 9095921 18191842 27287763 36383684 45479605 54575526 72767368 90959210 109151052 136438815 145534736 181918420 218302104 272877630 363836840 436604208 545755260 727673680 1091510520 2183021040