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648693348 = 223147136749
BaseRepresentation
bin100110101010100…
…100011001100100
31200012122000222120
4212222210121210
52312031141343
6144211425540
722034542152
oct4652443144
91605560876
10648693348
11303196a06
121612b52b0
13a4517324
14622203d2
153be3a683
hex26aa4664

648693348 has 24 divisors (see below), whose sum is σ = 1514688000. Its totient is φ = 216078240.

The previous prime is 648693347. The next prime is 648693379. The reversal of 648693348 is 843396846.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 648693348.

It is not an unprimeable number, because it can be changed into a prime (648693347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 723 + ... + 36026.

It is an arithmetic number, because the mean of its divisors is an integer number (63112000).

Almost surely, 2648693348 is an apocalyptic number.

It is an amenable number.

648693348 is an abundant number, since it is smaller than the sum of its proper divisors (865994652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

648693348 is a wasteful number, since it uses less digits than its factorization.

648693348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38227 (or 38225 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 51.

The square root of 648693348 is about 25469.4591226433. The cubic root of 648693348 is about 865.6582682379.

The spelling of 648693348 in words is "six hundred forty-eight million, six hundred ninety-three thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 1471 2942 4413 5884 8826 17652 36749 73498 110247 146996 220494 440988 54057779 108115558 162173337 216231116 324346674 648693348