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49689714809 = 7234315147533
BaseRepresentation
bin101110010001101111…
…001110000001111001
311202020221222001100202
4232101233032001321
51303231031333214
634454355011545
73406233415130
oct562157160171
9152227861322
1049689714809
111a089604209
129768b99bb5
1348bb6b0617
142595440917
15145c5036de
hexb91bce079

49689714809 has 32 divisors (see below), whose sum is σ = 61038219264. Its totient is φ = 39527611200.

The previous prime is 49689714803. The next prime is 49689714821. The reversal of 49689714809 is 90841798694.

It is not a de Polignac number, because 49689714809 - 220 = 49688666233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49689714803) 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 31 ways as a sum of consecutive naturals, for example, 1021607 + ... + 1069139.

It is an arithmetic number, because the mean of its divisors is an integer number (1907444352).

Almost surely, 249689714809 is an apocalyptic number.

It is an amenable number.

49689714809 is a deficient number, since it is larger than the sum of its proper divisors (11348504455).

49689714809 is a wasteful number, since it uses less digits than its factorization.

49689714809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47757.

The product of its (nonzero) digits is 31352832, while the sum is 65.

The spelling of 49689714809 in words is "forty-nine billion, six hundred eighty-nine million, seven hundred fourteen thousand, eight hundred nine".

Divisors: 1 7 23 43 151 161 301 989 1057 3473 6493 6923 24311 45451 47533 149339 332731 1045373 1093259 2043919 7177483 7652813 14307433 47010137 50242381 165082109 308631769 329070959 1155574763 2160422383 7098530687 49689714809