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49949471 = 1113297277
BaseRepresentation
bin1011111010001…
…0101100011111
310110222200210102
42332202230133
5100241340341
64542331315
71144364165
oct276425437
9113880712
1049949471
1126216860
1214889b3b
13a46b400
1468c3235
1545b9c9b
hex2fa2b1f

49949471 has 24 divisors (see below), whose sum is σ = 59827824. Its totient is φ = 41333760.

The previous prime is 49949467. The next prime is 49949477. The reversal of 49949471 is 17494994.

It is not a de Polignac number, because 49949471 - 22 = 49949467 is a prime.

It is a super-3 number, since 3×499494713 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49949477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180185 + ... + 180461.

It is an arithmetic number, because the mean of its divisors is an integer number (2492826).

Almost surely, 249949471 is an apocalyptic number.

49949471 is a deficient number, since it is larger than the sum of its proper divisors (9878353).

49949471 is a wasteful number, since it uses less digits than its factorization.

49949471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 398 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 49949471 is about 7067.4939688690. The cubic root of 49949471 is about 368.2790077511.

The spelling of 49949471 in words is "forty-nine million, nine hundred forty-nine thousand, four hundred seventy-one".

Divisors: 1 11 13 97 143 169 277 1067 1261 1859 3047 3601 13871 16393 26869 39611 46813 180323 295559 349297 514943 3842267 4540861 49949471