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2106810235 = 52385721377
BaseRepresentation
bin111110110010011…
…0101111101111011
312102211100001022201
41331210311331323
513303320411420
6545020131031
7103131406615
oct17544657573
95384301281
102106810235
1199126a792
124a9696a77
1327763389a
1415db3ddb5
15c4e6010a
hex7d935f7b

2106810235 has 16 divisors (see below), whose sum is σ = 2641294656. Its totient is φ = 1610211328.

The previous prime is 2106810217. The next prime is 2106810247. The reversal of 2106810235 is 5320186012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2106810235 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87867 + ... + 109243.

It is an arithmetic number, because the mean of its divisors is an integer number (165080916).

Almost surely, 22106810235 is an apocalyptic number.

2106810235 is a deficient number, since it is larger than the sum of its proper divisors (534484421).

2106810235 is a wasteful number, since it uses less digits than its factorization.

2106810235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22262.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2106810235 is about 45900.0025599128. The cubic root of 2106810235 is about 1281.9619641364.

Adding to 2106810235 its reverse (5320186012), we get a palindrome (7426996247).

The spelling of 2106810235 in words is "two billion, one hundred six million, eight hundred ten thousand, two hundred thirty-five".

Divisors: 1 5 23 115 857 4285 19711 21377 98555 106885 491671 2458355 18320089 91600445 421362047 2106810235