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49983885 = 3757653
BaseRepresentation
bin1011111010101…
…1000110001101
310111001110000000
42332223012031
5100243441020
64543154513
71144566420
oct276530615
9114043000
1049983885
112623a6a6
12148a5a39
13a480c83
1468d19b7
1545c5090
hex2fab18d

49983885 has 64 divisors (see below), whose sum is σ = 102965760. Its totient is φ = 22814784.

The previous prime is 49983883. The next prime is 49983917. The reversal of 49983885 is 58838994.

It is a happy number.

It is not a de Polignac number, because 49983885 - 21 = 49983883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49983883) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76219 + ... + 76871.

It is an arithmetic number, because the mean of its divisors is an integer number (1608840).

Almost surely, 249983885 is an apocalyptic number.

49983885 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49983885 is an abundant number, since it is smaller than the sum of its proper divisors (52981875).

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

49983885 is an frugal number, since it uses more digits than its factorization.

49983885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 668 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 49983885 is about 7069.9282174574. The cubic root of 49983885 is about 368.3635668328.

The spelling of 49983885 in words is "forty-nine million, nine hundred eighty-three thousand, eight hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 81 105 135 189 243 315 405 567 653 729 945 1215 1701 1959 2187 2835 3265 3645 4571 5103 5877 8505 9795 10935 13713 15309 17631 22855 25515 29385 41139 52893 68565 76545 88155 123417 158679 205695 264465 370251 476037 617085 793395 1110753 1428111 1851255 2380185 3332259 5553765 7140555 9996777 16661295 49983885