Search a number
-
+
49426993 = 711641909
BaseRepresentation
bin1011110010001…
…1001000110001
310110000011002101
42330203020301
5100123130433
64523220401
71140060010
oct274431061
9113004071
1049426993
112599a260
1214677701
13a317655
1467c8a77
15451507d
hex2f23231

49426993 has 8 divisors (see below), whose sum is σ = 61623360. Its totient is φ = 38514480.

The previous prime is 49426987. The next prime is 49427009. The reversal of 49426993 is 39962494.

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 49426993 - 225 = 15872561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49426943) 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, 320878 + ... + 321031.

It is an arithmetic number, because the mean of its divisors is an integer number (7702920).

Almost surely, 249426993 is an apocalyptic number.

It is an amenable number.

49426993 is a deficient number, since it is larger than the sum of its proper divisors (12196367).

49426993 is a wasteful number, since it uses less digits than its factorization.

49426993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641927.

The product of its digits is 419904, while the sum is 46.

The square root of 49426993 is about 7030.4333436852. The cubic root of 49426993 is about 366.9904221305.

It can be divided in two parts, 4942 and 6993, that added together give a triangular number (11935 = T154).

The spelling of 49426993 in words is "forty-nine million, four hundred twenty-six thousand, nine hundred ninety-three".

Divisors: 1 7 11 77 641909 4493363 7060999 49426993