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49745992 = 2328122129
BaseRepresentation
bin1011110111000…
…1000001001000
310110121100200011
42331301001020
5100213332432
64534121304
71142556022
oct275610110
9113540604
1049745992
112609799a
12147b0234
13a3c98ca
14686d012
154579847
hex2f71048

49745992 has 16 divisors (see below), whose sum is σ = 93609900. Its totient is φ = 24783360.

The previous prime is 49745989. The next prime is 49745999. The reversal of 49745992 is 29954794.

It can be written as a sum of positive squares in 2 ways, for example, as 42850116 + 6895876 = 6546^2 + 2626^2 .

It is not an unprimeable number, because it can be changed into a prime (49745999) 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, 8817 + ... + 13312.

Almost surely, 249745992 is an apocalyptic number.

It is an amenable number.

49745992 is a deficient number, since it is larger than the sum of its proper divisors (43863908).

49745992 is a wasteful number, since it uses less digits than its factorization.

49745992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22416 (or 22412 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 49745992 is about 7053.0838645234. The cubic root of 49745992 is about 367.7782414729.

The spelling of 49745992 in words is "forty-nine million, seven hundred forty-five thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 281 562 1124 2248 22129 44258 88516 177032 6218249 12436498 24872996 49745992