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49372140 = 22351974177
BaseRepresentation
bin1011110001010…
…1101111101100
310102220100211210
42330111233230
5100114402030
64522114420
71136441046
oct274255754
9112810753
1049372140
1125962024
121464ba10
13a2c86ac
1467b2a96
154503bb0
hex2f15bec

49372140 has 48 divisors (see below), whose sum is σ = 138976992. Its totient is φ = 13095936.

The previous prime is 49372129. The next prime is 49372151. The reversal of 49372140 is 4127394.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49372129) and next prime (49372151).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 49372098 and 49372107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9732 + ... + 13908.

It is an arithmetic number, because the mean of its divisors is an integer number (2895354).

Almost surely, 249372140 is an apocalyptic number.

It is an amenable number.

49372140 is an abundant number, since it is smaller than the sum of its proper divisors (89604852).

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

49372140 is a wasteful number, since it uses less digits than its factorization.

49372140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386 (or 4384 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 49372140 is about 7026.5311498634. The cubic root of 49372140 is about 366.8546125535.

The spelling of 49372140 in words is "forty-nine million, three hundred seventy-two thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 197 394 591 788 985 1182 1970 2364 2955 3940 4177 5910 8354 11820 12531 16708 20885 25062 41770 50124 62655 83540 125310 250620 822869 1645738 2468607 3291476 4114345 4937214 8228690 9874428 12343035 16457380 24686070 49372140