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2685105124 = 2213219932
BaseRepresentation
bin1010000000001011…
…0111001111100100
320221010111110202221
42200002313033210
520444341330444
61122235042124
7123353005552
oct24002671744
96833443687
102685105124
111158743249
1262b2a0344
1333a39cc00
141b6876bd2
1510aae1a84
hexa00b73e4

2685105124 has 27 divisors (see below), whose sum is σ = 5090749083. Its totient is φ = 1238657472.

The previous prime is 2685105121. The next prime is 2685105149. The reversal of 2685105124 is 4215015862.

It is a happy number.

The square root of 2685105124 is 51818.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 59567524 + 2625537600 = 7718^2 + 51240^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2685105124.

It is not an unprimeable number, because it can be changed into a prime (2685105121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1346272 + ... + 1348264.

Almost surely, 22685105124 is an apocalyptic number.

2685105124 is the 51818-th square number.

It is an amenable number.

2685105124 is a deficient number, since it is larger than the sum of its proper divisors (2405643959).

2685105124 is an equidigital number, since it uses as much as digits as its factorization.

2685105124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016 (or 2008 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The cubic root of 2685105124 is about 1389.9113384781.

The spelling of 2685105124 in words is "two billion, six hundred eighty-five million, one hundred five thousand, one hundred twenty-four".

Divisors: 1 2 4 13 26 52 169 338 676 1993 3986 7972 25909 51818 103636 336817 673634 1347268 3972049 7944098 15888196 51636637 103273274 206546548 671276281 1342552562 2685105124