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4990628749 = 171915450863
BaseRepresentation
bin1001010010111011…
…01111001110001101
3110212210202012121211
410221131233032031
540210100104444
62143114254421
7234446434021
oct45135571615
913783665554
104990628749
112131097277
12b73427411
13616c2a282
14354b42381
151e3204c34
hex12976f38d

4990628749 has 8 divisors (see below), whose sum is σ = 5562311040. Its totient is φ = 4449848256.

The previous prime is 4990628743. The next prime is 4990628761. The reversal of 4990628749 is 9478260994.

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

It is a cyclic number.

It is not a de Polignac number, because 4990628749 - 211 = 4990626701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4990628693 and 4990628702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4990628743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7725109 + ... + 7725754.

It is an arithmetic number, because the mean of its divisors is an integer number (695288880).

Almost surely, 24990628749 is an apocalyptic number.

It is an amenable number.

4990628749 is a deficient number, since it is larger than the sum of its proper divisors (571682291).

4990628749 is a wasteful number, since it uses less digits than its factorization.

4990628749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15450899.

The product of its (nonzero) digits is 7838208, while the sum is 58.

The square root of 4990628749 is about 70644.3822890398. The cubic root of 4990628749 is about 1708.9069709690.

The spelling of 4990628749 in words is "four billion, nine hundred ninety million, six hundred twenty-eight thousand, seven hundred forty-nine".

Divisors: 1 17 19 323 15450863 262664671 293566397 4990628749