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49195820 = 2252459791
BaseRepresentation
bin1011101110101…
…0101100101100
310102120101222102
42323222230230
5100043231240
64514234232
71135105022
oct273525454
9112511872
1049195820
1125851603
1214585978
13a26636b
146768712
1544bb815
hex2eeab2c

49195820 has 12 divisors (see below), whose sum is σ = 103311264. Its totient is φ = 19678320.

The previous prime is 49195801. The next prime is 49195831. The reversal of 49195820 is 2859194.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1229876 + ... + 1229915.

It is an arithmetic number, because the mean of its divisors is an integer number (8609272).

Almost surely, 249195820 is an apocalyptic number.

It is an amenable number.

49195820 is an abundant number, since it is smaller than the sum of its proper divisors (54115444).

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

49195820 is a wasteful number, since it uses less digits than its factorization.

49195820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459800 (or 2459798 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 49195820 is about 7013.9731964130. The cubic root of 49195820 is about 366.4173824410.

The spelling of 49195820 in words is "forty-nine million, one hundred ninety-five thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 2459791 4919582 9839164 12298955 24597910 49195820