Search a number
-
+
49780080 = 24325721783
BaseRepresentation
bin1011110111100…
…1010101110000
310110200002102200
42331321111300
5100220430310
64534543200
71143060300
oct275712560
9113602380
1049780080
1126110569
1214807b00
13a40c28c
14687b600
1545849c0
hex2f79570

49780080 has 360 divisors, whose sum is σ = 208392912. Its totient is φ = 10579968.

The previous prime is 49780051. The next prime is 49780117. The reversal of 49780080 is 8008794.

It is a tau number, because it is divible by the number of its divisors (360).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 599719 + ... + 599801.

Almost surely, 249780080 is an apocalyptic number.

49780080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is a pronic number, being equal to 7055×7056.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49780080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104196456).

49780080 is an abundant number, since it is smaller than the sum of its proper divisors (158612832).

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

49780080 is a wasteful number, since it uses less digits than its factorization.

49780080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 49780080 is about 7055.4999822833. The cubic root of 49780080 is about 367.8622278853.

The spelling of 49780080 in words is "forty-nine million, seven hundred eighty thousand, eighty".