Search a number
-
+
49930491 = 3133141299
BaseRepresentation
bin1011111001111…
…0000011111011
310110221201202110
42332132003323
5100240233431
64542103403
71144254642
oct276360373
9113851673
1049930491
1126203576
121487ab63
13a462890
1468ba359
1545b4346
hex2f9e0fb

49930491 has 16 divisors (see below), whose sum is σ = 74009600. Its totient is φ = 29734560.

The previous prime is 49930487. The next prime is 49930523. The reversal of 49930491 is 19403994.

It is not a de Polignac number, because 49930491 - 22 = 49930487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49930421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19441 + ... + 21858.

It is an arithmetic number, because the mean of its divisors is an integer number (4625600).

Almost surely, 249930491 is an apocalyptic number.

49930491 is a deficient number, since it is larger than the sum of its proper divisors (24079109).

49930491 is a wasteful number, since it uses less digits than its factorization.

49930491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41346.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 49930491 is about 7066.1510739582. The cubic root of 49930491 is about 368.2323551308.

The spelling of 49930491 in words is "forty-nine million, nine hundred thirty thousand, four hundred ninety-one".

Divisors: 1 3 13 31 39 93 403 1209 41299 123897 536887 1280269 1610661 3840807 16643497 49930491