Search a number
-
+
8705420214 = 2317409208673
BaseRepresentation
bin10000001101110001…
…00010101110110110
3211110200210011111220
420012320202232312
5120312041421324
63555455211210
7425504564601
oct100670425666
924420704456
108705420214
113767a8a067
12182b516b06
13a8972c62a
145c8253338
1535e3ddb79
hex206e22bb6

8705420214 has 32 divisors (see below), whose sum is σ = 18480169440. Its totient is φ = 2724421632.

The previous prime is 8705420203. The next prime is 8705420237. The reversal of 8705420214 is 4120245078.

It is a super-2 number, since 2×87054202142 (a number of 21 digits) contains 22 as substring.

It is a congruent 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, 62619 + ... + 146054.

It is an arithmetic number, because the mean of its divisors is an integer number (577505295).

Almost surely, 28705420214 is an apocalyptic number.

8705420214 is an abundant number, since it is smaller than the sum of its proper divisors (9774749226).

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

8705420214 is a wasteful number, since it uses less digits than its factorization.

8705420214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209104.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 8705420214 is about 93302.8414036786. The cubic root of 8705420214 is about 2057.1371466538.

The spelling of 8705420214 in words is "eight billion, seven hundred five million, four hundred twenty thousand, two hundred fourteen".

Divisors: 1 2 3 6 17 34 51 102 409 818 1227 2454 6953 13906 20859 41718 208673 417346 626019 1252038 3547441 7094882 10642323 21284646 85347257 170694514 256041771 512083542 1450903369 2901806738 4352710107 8705420214