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6489038830 = 252113930697
BaseRepresentation
bin1100000101100011…
…01101111111101110
3121202020021022211111
412002301231333232
5101242143220310
62551522342234
7316542630361
oct60261557756
917666238744
106489038830
11282a990a0a
1213111ba97a
137c54b3961
14457b500d8
1527ea3828a
hex182c6dfee

6489038830 has 16 divisors (see below), whose sum is σ = 11681202960. Its totient is φ = 2595408192.

The previous prime is 6489038807. The next prime is 6489038837. The reversal of 6489038830 is 388309846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6489038837) 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, 196042 + ... + 226738.

It is an arithmetic number, because the mean of its divisors is an integer number (730075185).

Almost surely, 26489038830 is an apocalyptic number.

6489038830 is a deficient number, since it is larger than the sum of its proper divisors (5192164130).

6489038830 is a wasteful number, since it uses less digits than its factorization.

6489038830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51843.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 6489038830 is about 80554.5705096862. The cubic root of 6489038830 is about 1865.2059448607.

The spelling of 6489038830 in words is "six billion, four hundred eighty-nine million, thirty-eight thousand, eight hundred thirty".

Divisors: 1 2 5 10 21139 30697 42278 61394 105695 153485 211390 306970 648903883 1297807766 3244519415 6489038830