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549980853 = 32329274853
BaseRepresentation
bin100000110010000…
…000101010110101
31102022212220220020
4200302000222311
52111243341403
6130323555353
716425521502
oct4062005265
91368786806
10549980853
112624a4834
1213422bb59
1389c34876
14530864a9
153343c453
hex20c80ab5

549980853 has 16 divisors (see below), whose sum is σ = 791579520. Its totient is φ = 338617664.

The previous prime is 549980833. The next prime is 549980861. The reversal of 549980853 is 358089945.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 549980853 - 26 = 549980789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549980796 and 549980805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549980803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135426 + ... + 139427.

It is an arithmetic number, because the mean of its divisors is an integer number (49473720).

Almost surely, 2549980853 is an apocalyptic number.

It is an amenable number.

549980853 is a deficient number, since it is larger than the sum of its proper divisors (241598667).

549980853 is a wasteful number, since it uses less digits than its factorization.

549980853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274908.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The square root of 549980853 is about 23451.6705801527. The cubic root of 549980853 is about 819.3117628877.

The spelling of 549980853 in words is "five hundred forty-nine million, nine hundred eighty thousand, eight hundred fifty-three".

Divisors: 1 3 23 29 69 87 667 2001 274853 824559 6321619 7970737 18964857 23912211 183326951 549980853