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49389950 = 2524721017
BaseRepresentation
bin1011110001101…
…0000101111110
310102221021021102
42330122011332
5100120434300
64522333102
71136544011
oct274320576
9112837242
1049389950
1125974445
121465a192
13a30382c
1467b9378
1545090d5
hex2f1a17e

49389950 has 24 divisors (see below), whose sum is σ = 93824352. Its totient is φ = 19334720.

The previous prime is 49389937. The next prime is 49389959. The reversal of 49389950 is 5998394.

It is a super-2 number, since 2×493899502 = 4878734322005000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 49389895 and 49389904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49389959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8159 + ... + 12858.

It is an arithmetic number, because the mean of its divisors is an integer number (3909348).

Almost surely, 249389950 is an apocalyptic number.

49389950 is a deficient number, since it is larger than the sum of its proper divisors (44434402).

49389950 is a wasteful number, since it uses less digits than its factorization.

49389950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21076 (or 21071 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 49389950 is about 7027.7983750247. The cubic root of 49389950 is about 366.8987190421.

The spelling of 49389950 in words is "forty-nine million, three hundred eighty-nine thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 47 50 94 235 470 1175 2350 21017 42034 105085 210170 525425 987799 1050850 1975598 4938995 9877990 24694975 49389950