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49009471 = 753592239
BaseRepresentation
bin1011101011110…
…1001100111111
310102012221100121
42322331030333
5100021300341
64510235411
71133400520
oct272751477
9112187317
1049009471
11257345a5
12144b5b67
13a1cc5b4
14671a847
1544814d1
hex2ebd33f

49009471 has 16 divisors (see below), whose sum is σ = 58060800. Its totient is φ = 40498848.

The previous prime is 49009469. The next prime is 49009489. The reversal of 49009471 is 17490094.

It is a cyclic number.

It is not a de Polignac number, because 49009471 - 21 = 49009469 is a prime.

It is a super-3 number, since 3×490094713 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49009451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20770 + ... + 23008.

It is an arithmetic number, because the mean of its divisors is an integer number (3628800).

Almost surely, 249009471 is an apocalyptic number.

49009471 is a deficient number, since it is larger than the sum of its proper divisors (9051329).

49009471 is a wasteful number, since it uses less digits than its factorization.

49009471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2358.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 49009471 is about 7000.6764673137. The cubic root of 49009471 is about 365.9541458674.

The spelling of 49009471 in words is "forty-nine million, nine thousand, four hundred seventy-one".

Divisors: 1 7 53 59 371 413 2239 3127 15673 21889 118667 132101 830669 924707 7001353 49009471