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8203389490 = 25820338949
BaseRepresentation
bin1111010001111010…
…11100101000110010
3210011201010100211101
413220331130220302
5113300031430430
63434003035014
7410200442302
oct75075345062
923151110741
108203389490
11352a665a3a
12170b36ba6a
13a0971612a
1457b6cd602
153302c3dca
hex1e8f5ca32

8203389490 has 8 divisors (see below), whose sum is σ = 14766101100. Its totient is φ = 3281355792.

The previous prime is 8203389451. The next prime is 8203389497. The reversal of 8203389490 is 949833028.

It can be written as a sum of positive squares in 2 ways, for example, as 8088663969 + 114725521 = 89937^2 + 10711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8203389490.

It is not an unprimeable number, because it can be changed into a prime (8203389497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410169465 + ... + 410169484.

Almost surely, 28203389490 is an apocalyptic number.

8203389490 is a deficient number, since it is larger than the sum of its proper divisors (6562711610).

8203389490 is a wasteful number, since it uses less digits than its factorization.

8203389490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820338956.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 8203389490 is about 90572.5647754330. The cubic root of 8203389490 is about 2016.8074827640.

The spelling of 8203389490 in words is "eight billion, two hundred three million, three hundred eighty-nine thousand, four hundred ninety".

Divisors: 1 2 5 10 820338949 1640677898 4101694745 8203389490