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6403483990 = 25640348399
BaseRepresentation
bin1011111011010110…
…10110100101010110
3121112021021200122201
411331223112211112
5101103242441430
62535224515114
7314453500351
oct57553264526
917467250581
106403483990
112796666332
1212a861ba9a
137b085a0a7
1444a63d298
152772888ca
hex17dad6956

6403483990 has 8 divisors (see below), whose sum is σ = 11526271200. Its totient is φ = 2561393592.

The previous prime is 6403483951. The next prime is 6403484023. The reversal of 6403483990 is 993843046.

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 6403483990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320174190 + ... + 320174209.

It is an arithmetic number, because the mean of its divisors is an integer number (1440783900).

Almost surely, 26403483990 is an apocalyptic number.

6403483990 is a deficient number, since it is larger than the sum of its proper divisors (5122787210).

6403483990 is a wasteful number, since it uses less digits than its factorization.

6403483990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640348406.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 6403483990 is about 80021.7719748819. The cubic root of 6403483990 is about 1856.9723733528.

The spelling of 6403483990 in words is "six billion, four hundred three million, four hundred eighty-three thousand, nine hundred ninety".

Divisors: 1 2 5 10 640348399 1280696798 3201741995 6403483990