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498067921 = 13172397987
BaseRepresentation
bin11101101011111…
…110100111010001
31021201012110202001
4131223332213101
52010001133141
6121231154001
715225336031
oct3553764721
91251173661
10498067921
1123616788a
1211a975901
137c259860
144a2118c1
152dad5a31
hex1dafe9d1

498067921 has 16 divisors (see below), whose sum is σ = 592631424. Its totient is φ = 413892864.

The previous prime is 498067909. The next prime is 498067939. The reversal of 498067921 is 129760894.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-498067921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (498067951) 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 15 ways as a sum of consecutive naturals, for example, 43911 + ... + 54076.

It is an arithmetic number, because the mean of its divisors is an integer number (37039464).

Almost surely, 2498067921 is an apocalyptic number.

It is an amenable number.

498067921 is a deficient number, since it is larger than the sum of its proper divisors (94563503).

498067921 is a wasteful number, since it uses less digits than its factorization.

498067921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98040.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 498067921 is about 22317.4353589296. The cubic root of 498067921 is about 792.6768782585.

The spelling of 498067921 in words is "four hundred ninety-eight million, sixty-seven thousand, nine hundred twenty-one".

Divisors: 1 13 17 23 221 299 391 5083 97987 1273831 1665779 2253701 21655127 29298113 38312917 498067921