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49978404 = 2233766109
BaseRepresentation
bin1011111010100…
…1110000100100
310111001011111000
42332221300210
5100243302104
64543113300
71144544430
oct276516044
9114034430
1049978404
1126236573
12148a2830
13a47b628
1468cd9c0
1545c3639
hex2fa9c24

49978404 has 48 divisors (see below), whose sum is σ = 148086400. Its totient is φ = 14279328.

The previous prime is 49978387. The next prime is 49978447. The reversal of 49978404 is 40487994.

49978404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 49978404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32299 + ... + 33810.

Almost surely, 249978404 is an apocalyptic number.

It is an amenable number.

49978404 is an abundant number, since it is smaller than the sum of its proper divisors (98107996).

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

49978404 is a wasteful number, since it uses less digits than its factorization.

49978404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66129 (or 66121 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 49978404 is about 7069.5405791324. The cubic root of 49978404 is about 368.3501019963.

The spelling of 49978404 in words is "forty-nine million, nine hundred seventy-eight thousand, four hundred four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 66109 132218 198327 264436 396654 462763 594981 793308 925526 1189962 1388289 1784943 1851052 2379924 2776578 3569886 4164867 5553156 7139772 8329734 12494601 16659468 24989202 49978404