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49779875 = 5371279
BaseRepresentation
bin1011110111100…
…1010010100011
310110200002011002
42331321102203
5100220424000
64534542215
71143056555
oct275712243
9113602132
1049779875
11261103a2
121480796b
13a40c162
14687b4d5
1545848d5
hex2f794a3

49779875 has 24 divisors (see below), whose sum is σ = 63810240. Its totient is φ = 38766000.

The previous prime is 49779839. The next prime is 49779883. The reversal of 49779875 is 57897794.

It is not a de Polignac number, because 49779875 - 26 = 49779811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49779875.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 630086 + ... + 630164.

It is an arithmetic number, because the mean of its divisors is an integer number (2658760).

Almost surely, 249779875 is an apocalyptic number.

49779875 is a deficient number, since it is larger than the sum of its proper divisors (14030365).

49779875 is an frugal number, since it uses more digits than its factorization.

49779875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 155 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 56.

The square root of 49779875 is about 7055.4854545949. The cubic root of 49779875 is about 367.8617229185.

The spelling of 49779875 in words is "forty-nine million, seven hundred seventy-nine thousand, eight hundred seventy-five".

Divisors: 1 5 25 71 79 125 355 395 1775 1975 5041 5609 8875 9875 25205 28045 126025 140225 398239 630125 701125 1991195 9955975 49779875