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49789080 = 23345112127
BaseRepresentation
bin1011110111101…
…1100010011000
310110200112210000
42331323202120
5100221222310
64535053000
71143125445
oct275734230
9113615700
1049789080
1126117300
1214811160
13a4133c3
1468809cc
1545874c0
hex2f7b898

49789080 has 240 divisors, whose sum is σ = 185391360. Its totient is φ = 11975040.

The previous prime is 49789057. The next prime is 49789081. The reversal of 49789080 is 8098794.

49789080 is a `hidden beast` number, since 497 + 89 + 0 + 80 = 666.

It is a super-5 number, since 5×497890805 (a number of 40 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49789081) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 391977 + ... + 392103.

It is an arithmetic number, because the mean of its divisors is an integer number (772464).

Almost surely, 249789080 is an apocalyptic number.

49789080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49789080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92695680).

49789080 is an abundant number, since it is smaller than the sum of its proper divisors (135602280).

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

49789080 is a wasteful number, since it uses less digits than its factorization.

49789080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 49789080 is about 7056.1377537574. The cubic root of 49789080 is about 367.8843957923.

The spelling of 49789080 in words is "forty-nine million, seven hundred eighty-nine thousand, eighty".