Search a number
-
+
6494031220 = 2258326914543
BaseRepresentation
bin1100000110001001…
…10000110101110100
3121202120122222002211
412003010300311310
5101244432444340
62552221343204
7316633232425
oct60304606564
917676588084
106494031220
112832790856
121312a07b04
137c6541131
1445868d64c
152801c25ea
hex183130d74

6494031220 has 48 divisors (see below), whose sum is σ = 13854032640. Its totient is φ = 2556599936.

The previous prime is 6494031169. The next prime is 6494031253. The reversal of 6494031220 is 221304946.

It is a happy number.

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, 439269 + ... + 453811.

It is an arithmetic number, because the mean of its divisors is an integer number (288625680).

Almost surely, 26494031220 is an apocalyptic number.

It is an amenable number.

6494031220 is an abundant number, since it is smaller than the sum of its proper divisors (7360001420).

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

6494031220 is a wasteful number, since it uses less digits than its factorization.

6494031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14904 (or 14902 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 6494031220 is about 80585.5521790352. The cubic root of 6494031220 is about 1865.6841589038.

The spelling of 6494031220 in words is "six billion, four hundred ninety-four million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 83 166 269 332 415 538 830 1076 1345 1660 2690 5380 14543 22327 29086 44654 58172 72715 89308 111635 145430 223270 290860 446540 1207069 2414138 3912067 4828276 6035345 7824134 12070690 15648268 19560335 24141380 39120670 78241340 324701561 649403122 1298806244 1623507805 3247015610 6494031220