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49136 = 243783
BaseRepresentation
bin1011111111110000
32111101212
423333300
53033021
61015252
7263153
oct137760
974355
1049136
1133a0a
1224528
1319499
1413c9a
15e85b
hexbff0

49136 has 20 divisors (see below), whose sum is σ = 98952. Its totient is φ = 23616.

The previous prime is 49123. The next prime is 49139. The reversal of 49136 is 63194.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551 + ... + 633.

249136 is an apocalyptic number.

It is an amenable number.

49136 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49476).

49136 is a wasteful number, since it uses less digits than its factorization.

49136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 122 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 49136 is about 221.6664160400. Note that the first 3 decimals coincide. The cubic root of 49136 is about 36.6268806281.

The spelling of 49136 in words is "forty-nine thousand, one hundred thirty-six".