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49355406949 = 213123160679
BaseRepresentation
bin101101111101110011…
…111011111001100101
311201101122220110012011
4231331303323321211
51302034441010244
634401253354221
73365034015502
oct557563737145
9151348813164
1049355406949
1119a27927822
129695038971
13486735cb14
142562c9a4a9
15143ceb9434
hexb7dcfbe65

49355406949 has 4 divisors (see below), whose sum is σ = 49378569760. Its totient is φ = 49332244140.

The previous prime is 49355406941. The next prime is 49355406979. The reversal of 49355406949 is 94960455394.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49355406949 - 23 = 49355406941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49355406893 and 49355406902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49355406941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11578209 + ... + 11582470.

It is an arithmetic number, because the mean of its divisors is an integer number (12344642440).

Almost surely, 249355406949 is an apocalyptic number.

It is an amenable number.

49355406949 is a deficient number, since it is larger than the sum of its proper divisors (23162811).

49355406949 is a wasteful number, since it uses less digits than its factorization.

49355406949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23162810.

The product of its (nonzero) digits is 20995200, while the sum is 58.

The spelling of 49355406949 in words is "forty-nine billion, three hundred fifty-five million, four hundred six thousand, nine hundred forty-nine".

Divisors: 1 2131 23160679 49355406949