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49870038 = 2328792887
BaseRepresentation
bin1011111000111…
…1010011010110
310110211122211110
42332033103112
5100231320123
64540515450
71143613461
oct276172326
9113748743
1049870038
1126172109
121484bb86
13a4411ca
1468a22d8
1545a1493
hex2f8f4d6

49870038 has 16 divisors (see below), whose sum is σ = 99809280. Its totient is φ = 16611816.

The previous prime is 49870033. The next prime is 49870081. The reversal of 49870038 is 83007894.

It is a junction number, because it is equal to n+sod(n) for n = 49869978 and 49870005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49870033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15831 + ... + 18717.

It is an arithmetic number, because the mean of its divisors is an integer number (6238080).

Almost surely, 249870038 is an apocalyptic number.

49870038 is an abundant number, since it is smaller than the sum of its proper divisors (49939242).

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

49870038 is a wasteful number, since it uses less digits than its factorization.

49870038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 49870038 is about 7061.8721313827. The cubic root of 49870038 is about 368.0836835130.

The spelling of 49870038 in words is "forty-nine million, eight hundred seventy thousand, thirty-eight".

Divisors: 1 2 3 6 2879 2887 5758 5774 8637 8661 17274 17322 8311673 16623346 24935019 49870038