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49783742680 = 2357177799081
BaseRepresentation
bin101110010111010101…
…111010000011011000
311202111111220011100111
4232113111322003120
51303424114231210
634511554214104
73411454554640
oct562725720330
9152444804314
1049783742680
111a1276967a1
129794584334
134905012a09
1425a3b19520
1514658c888a
hexb9757a0d8

49783742680 has 32 divisors (see below), whose sum is σ = 128015339040. Its totient is φ = 17068711680.

The previous prime is 49783742641. The next prime is 49783742681. The reversal of 49783742680 is 8624738794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49783742681) 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 7 ways as a sum of consecutive naturals, for example, 88899261 + ... + 88899820.

It is an arithmetic number, because the mean of its divisors is an integer number (4000479345).

Almost surely, 249783742680 is an apocalyptic number.

49783742680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49783742680 is an abundant number, since it is smaller than the sum of its proper divisors (78231596360).

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

49783742680 is a wasteful number, since it uses less digits than its factorization.

49783742680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177799099 (or 177799095 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 58.

The spelling of 49783742680 in words is "forty-nine billion, seven hundred eighty-three million, seven hundred forty-two thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 177799081 355598162 711196324 888995405 1244593567 1422392648 1777990810 2489187134 3555981620 4978374268 6222967835 7111963240 9956748536 12445935670 24891871340 49783742680