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49387212 = 2233765327
BaseRepresentation
bin1011110001100…
…1011011001100
310102221010112000
42330121123030
5100120342322
64522312300
71136533020
oct274313314
9112833460
1049387212
1125972386
1214658690
13a302504
1467b8380
1545083ac
hex2f196cc

49387212 has 48 divisors (see below), whose sum is σ = 146334720. Its totient is φ = 14110416.

The previous prime is 49387211. The next prime is 49387229. The reversal of 49387212 is 21278394.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (49387211) 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, 31908 + ... + 33419.

It is an arithmetic number, because the mean of its divisors is an integer number (3048640).

Almost surely, 249387212 is an apocalyptic number.

49387212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

49387212 is an abundant number, since it is smaller than the sum of its proper divisors (96947508).

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

49387212 is a wasteful number, since it uses less digits than its factorization.

49387212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65347 (or 65339 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 49387212 is about 7027.6035744769. The cubic root of 49387212 is about 366.8919390713.

The spelling of 49387212 in words is "forty-nine million, three hundred eighty-seven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 65327 130654 195981 261308 391962 457289 587943 783924 914578 1175886 1371867 1763829 1829156 2351772 2743734 3527658 4115601 5487468 7055316 8231202 12346803 16462404 24693606 49387212