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49901 = 139359
BaseRepresentation
bin1100001011101101
32112110012
430023231
53044101
61023005
7265325
oct141355
975405
1049901
1134545
1224a65
1319937
1414285
15ebbb
hexc2ed

49901 has 4 divisors (see below), whose sum is σ = 50400. Its totient is φ = 49404.

The previous prime is 49891. The next prime is 49919. The reversal of 49901 is 10994.

49901 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49901 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49921) 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, 41 + ... + 318.

It is an arithmetic number, because the mean of its divisors is an integer number (12600).

249901 is an apocalyptic number.

It is an amenable number.

49901 is a deficient number, since it is larger than the sum of its proper divisors (499).

49901 is a wasteful number, since it uses less digits than its factorization.

49901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 49901 is about 223.3853173331. The cubic root of 49901 is about 36.8159843132.

The spelling of 49901 in words is "forty-nine thousand, nine hundred one".

Divisors: 1 139 359 49901