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49642671 = 3132355343
BaseRepresentation
bin1011110101011…
…1110010101111
310110102002221110
42331113302233
5100202031141
64532003103
71141645551
oct275276257
9113362843
1049642671
1126027301
1214760493
13a391880
1468434d1
154558e16
hex2f57caf

49642671 has 16 divisors (see below), whose sum is σ = 74382336. Its totient is φ = 29220576.

The previous prime is 49642657. The next prime is 49642673. The reversal of 49642671 is 17624694.

It is a happy number.

It is not a de Polignac number, because 49642671 - 25 = 49642639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49642673) 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, 26775 + ... + 28568.

It is an arithmetic number, because the mean of its divisors is an integer number (4648896).

Almost surely, 249642671 is an apocalyptic number.

49642671 is a deficient number, since it is larger than the sum of its proper divisors (24739665).

49642671 is a wasteful number, since it uses less digits than its factorization.

49642671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55382.

The product of its digits is 72576, while the sum is 39.

The square root of 49642671 is about 7045.7555308143. The cubic root of 49642671 is about 367.5234433654.

The spelling of 49642671 in words is "forty-nine million, six hundred forty-two thousand, six hundred seventy-one".

Divisors: 1 3 13 23 39 69 299 897 55343 166029 719459 1272889 2158377 3818667 16547557 49642671