Search a number
-
+
3680520712 = 2311122934031
BaseRepresentation
bin1101101101100000…
…0100101000001000
3100111111112211020221
43123120010220020
530014203130322
61405114155424
7160130624041
oct33330045010
910444484227
103680520712
111619615760
12868722b74
1346869350b
1426cb4d8c8
151681b99c7
hexdb604a08

3680520712 has 32 divisors (see below), whose sum is σ = 7534684800. Its totient is φ = 1671553600.

The previous prime is 3680520691. The next prime is 3680520719. The reversal of 3680520712 is 2170250863.

It is a happy number.

It is a super-2 number, since 2×36805207122 = 27092465422921973888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3680520719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91137 + ... + 125167.

It is an arithmetic number, because the mean of its divisors is an integer number (235458900).

Almost surely, 23680520712 is an apocalyptic number.

It is an amenable number.

3680520712 is an abundant number, since it is smaller than the sum of its proper divisors (3854164088).

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

3680520712 is a wasteful number, since it uses less digits than its factorization.

3680520712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35277 (or 35273 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 3680520712 is about 60667.2952421649. The cubic root of 3680520712 is about 1543.9613413947.

The spelling of 3680520712 in words is "three billion, six hundred eighty million, five hundred twenty thousand, seven hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 1229 2458 4916 9832 13519 27038 34031 54076 68062 108152 136124 272248 374341 748682 1497364 2994728 41824099 83648198 167296396 334592792 460065089 920130178 1840260356 3680520712