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49000056 = 23372631109
BaseRepresentation
bin1011101011101…
…0111001111000
310102012110102220
42322322321320
5100021000211
64510124040
71133331210
oct272727170
9112173386
1049000056
1125728516
12144b0620
13a1c8221
146717240
15447d806
hex2ebae78

49000056 has 64 divisors (see below), whose sum is σ = 140659200. Its totient is φ = 13934208.

The previous prime is 49000033. The next prime is 49000073. The reversal of 49000056 is 65000094.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 43630 + ... + 44738.

It is an arithmetic number, because the mean of its divisors is an integer number (2197800).

Almost surely, 249000056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49000056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70329600).

49000056 is an abundant number, since it is smaller than the sum of its proper divisors (91659144).

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

49000056 is a wasteful number, since it uses less digits than its factorization.

49000056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388 (or 1384 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 49000056 is about 7000.0039999989. The cubic root of 49000056 is about 365.9307104044.

The spelling of 49000056 in words is "forty-nine million, fifty-six", and thus it is an aban number and an uban number.

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 263 526 789 1052 1109 1578 1841 2104 2218 3156 3327 3682 4436 5523 6312 6654 7364 7763 8872 11046 13308 14728 15526 22092 23289 26616 31052 44184 46578 62104 93156 186312 291667 583334 875001 1166668 1750002 2041669 2333336 3500004 4083338 6125007 7000008 8166676 12250014 16333352 24500028 49000056