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47927386540 = 22511217851757
BaseRepresentation
bin101100101000101100…
…011110000110101100
311120201010211111110101
4230220230132012230
51241123402332130
634003442120444
73314454030625
oct545054360654
9146633744411
1047927386540
111936483a970
129356950124
13469a550427
142469372a4c
1513a793c1ca
hexb28b1e1ac

47927386540 has 24 divisors (see below), whose sum is σ = 109797286032. Its totient is φ = 17428140480.

The previous prime is 47927386531. The next prime is 47927386547. The reversal of 47927386540 is 4568372974.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (47927386547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108925659 + ... + 108926098.

It is an arithmetic number, because the mean of its divisors is an integer number (4574886918).

Almost surely, 247927386540 is an apocalyptic number.

It is an amenable number.

47927386540 is an abundant number, since it is smaller than the sum of its proper divisors (61869899492).

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

47927386540 is a wasteful number, since it uses less digits than its factorization.

47927386540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217851777 (or 217851775 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 47927386540 in words is "forty-seven billion, nine hundred twenty-seven million, three hundred eighty-six thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 217851757 435703514 871407028 1089258785 2178517570 2396369327 4357035140 4792738654 9585477308 11981846635 23963693270 47927386540