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49077838780 = 2252453891939
BaseRepresentation
bin101101101101010001…
…000110001110111100
311200200022121112020121
4231231101012032330
51301002411320110
634313540224324
73355123514035
oct555521061674
9150608545217
1049077838780
11198a5184743
12961809b0a4
1348219b72b9
142538085a8c
15142393bcda
hexb6d4463bc

49077838780 has 12 divisors (see below), whose sum is σ = 103063461480. Its totient is φ = 19631135504.

The previous prime is 49077838757. The next prime is 49077838783. The reversal of 49077838780 is 8783877094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49077838783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1226945950 + ... + 1226945989.

It is an arithmetic number, because the mean of its divisors is an integer number (8588621790).

Almost surely, 249077838780 is an apocalyptic number.

It is an amenable number.

49077838780 is an abundant number, since it is smaller than the sum of its proper divisors (53985622700).

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

49077838780 is a wasteful number, since it uses less digits than its factorization.

49077838780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453891948 (or 2453891946 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 61.

The spelling of 49077838780 in words is "forty-nine billion, seventy-seven million, eight hundred thirty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2453891939 4907783878 9815567756 12269459695 24538919390 49077838780