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423866680 = 23547225461
BaseRepresentation
bin11001010000111…
…011000100111000
31002112120122202221
4121100323010320
51332002213210
6110020533424
713334543626
oct3120730470
91075518687
10423866680
111a8297346
12b9b51274
1369a799b3
1440418516
152732a1da
hex1943b138

423866680 has 32 divisors (see below), whose sum is σ = 973995840. Its totient is φ = 165938560.

The previous prime is 423866671. The next prime is 423866719. The reversal of 423866680 is 86668324.

It is a congruent number.

It is an unprimeable number.

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, 110851 + ... + 114610.

It is an arithmetic number, because the mean of its divisors is an integer number (30437370).

Almost surely, 2423866680 is an apocalyptic number.

423866680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423866680 is an abundant number, since it is smaller than the sum of its proper divisors (550129160).

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

423866680 is a wasteful number, since it uses less digits than its factorization.

423866680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225519 (or 225515 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 423866680 is about 20588.0227316758. The cubic root of 423866680 is about 751.1784023357.

The spelling of 423866680 in words is "four hundred twenty-three million, eight hundred sixty-six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 47 94 188 235 376 470 940 1880 225461 450922 901844 1127305 1803688 2254610 4509220 9018440 10596667 21193334 42386668 52983335 84773336 105966670 211933340 423866680