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51302223040 = 265160319447
BaseRepresentation
bin101111110001110110…
…011100110011000000
311220102100011221210211
4233301312130303000
51320031332114130
635322400403504
73464213462245
oct576166346300
9156370157724
1051302223040
111a836849542
129b39016594
134ab77a57c3
1426a966d5cc
151503d73a2a
hexbf1d9ccc0

51302223040 has 28 divisors (see below), whose sum is σ = 122163419376. Its totient is φ = 20520889088.

The previous prime is 51302223001. The next prime is 51302223043. The reversal of 51302223040 is 4032220315.

It is not an unprimeable number, because it can be changed into a prime (51302223043) 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 3 ways as a sum of consecutive naturals, for example, 80159404 + ... + 80160043.

Almost surely, 251302223040 is an apocalyptic number.

It is an amenable number.

51302223040 is an abundant number, since it is smaller than the sum of its proper divisors (70861196336).

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

51302223040 is a wasteful number, since it uses less digits than its factorization.

51302223040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160319464 (or 160319454 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 51302223040 its reverse (4032220315), we get a palindrome (55334443355).

The spelling of 51302223040 in words is "fifty-one billion, three hundred two million, two hundred twenty-three thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 160319447 320638894 641277788 801597235 1282555576 1603194470 2565111152 3206388940 5130222304 6412777880 10260444608 12825555760 25651111520 51302223040