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49903225 = 521996129
BaseRepresentation
bin1011111001011…
…1011001111001
310110220100100121
42332113121321
5100233400400
64541333241
71144112311
oct276273171
9113810317
1049903225
1126195039
1214867221
13a453348
1468b0441
1545ab21a
hex2f97679

49903225 has 6 divisors (see below), whose sum is σ = 61880030. Its totient is φ = 39922560.

The previous prime is 49903223. The next prime is 49903267. The reversal of 49903225 is 52230994.

It can be written as a sum of positive squares in 3 ways, for example, as 186624 + 49716601 = 432^2 + 7051^2 .

It is not a de Polignac number, because 49903225 - 21 = 49903223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49903223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 998040 + ... + 998089.

Almost surely, 249903225 is an apocalyptic number.

It is an amenable number.

49903225 is a deficient number, since it is larger than the sum of its proper divisors (11976805).

49903225 is a wasteful number, since it uses less digits than its factorization.

49903225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996139 (or 1996134 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 49903225 is about 7064.2214716131. The cubic root of 49903225 is about 368.1653149226.

The spelling of 49903225 in words is "forty-nine million, nine hundred three thousand, two hundred twenty-five".

Divisors: 1 5 25 1996129 9980645 49903225