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49677814881 = 325519757209
BaseRepresentation
bin101110010001000001…
…110100110001100001
311202020010120110201200
4232101001310301201
51303220010034011
634453251551413
73406030313352
oct562101646141
9152203513650
1049677814881
111a082916662
129764bbb569
1348b90a5046
142593a23d29
15145b452856
hexb91074c61

49677814881 has 6 divisors (see below), whose sum is σ = 71756843730. Its totient is φ = 33118543248.

The previous prime is 49677814811. The next prime is 49677814909. The reversal of 49677814881 is 18841877694.

49677814881 is a `hidden beast` number, since 4 + 9 + 6 + 77 + 81 + 488 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 48534293025 + 1143521856 = 220305^2 + 33816^2 .

It is not a de Polignac number, because 49677814881 - 226 = 49610706017 is a prime.

It is a super-2 number, since 2×496778148812 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49677814811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2759878596 + ... + 2759878613.

It is an arithmetic number, because the mean of its divisors is an integer number (11959473955).

Almost surely, 249677814881 is an apocalyptic number.

It is an amenable number.

49677814881 is a deficient number, since it is larger than the sum of its proper divisors (22079028849).

49677814881 is a wasteful number, since it uses less digits than its factorization.

49677814881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5519757215 (or 5519757212 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 63.

The spelling of 49677814881 in words is "forty-nine billion, six hundred seventy-seven million, eight hundred fourteen thousand, eight hundred eighty-one".

Divisors: 1 3 9 5519757209 16559271627 49677814881