Search a number
-
+
49709131 = 735211307
BaseRepresentation
bin1011110110100…
…0000001001011
310110112111002221
42331220001023
5100211143011
64533234511
71142343403
oct275500113
9113474087
1049709131
112607222a
1214792a37
13a3b5bb4
14685d803
15456d971
hex2f6804b

49709131 has 8 divisors (see below), whose sum is σ = 50525424. Its totient is φ = 48896640.

The previous prime is 49709119. The next prime is 49709189. The reversal of 49709131 is 13190794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49709131 - 213 = 49700939 is a prime.

It is a super-2 number, since 2×497091312 = 4941995409550322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49709531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37380 + ... + 38686.

It is an arithmetic number, because the mean of its divisors is an integer number (6315678).

Almost surely, 249709131 is an apocalyptic number.

49709131 is a deficient number, since it is larger than the sum of its proper divisors (816293).

49709131 is a wasteful number, since it uses less digits than its factorization.

49709131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 49709131 is about 7050.4702680034. The cubic root of 49709131 is about 367.6873797236.

The spelling of 49709131 in words is "forty-nine million, seven hundred nine thousand, one hundred thirty-one".

Divisors: 1 73 521 1307 38033 95411 680947 49709131