Search a number
-
+
49690719 = 3313197451
BaseRepresentation
bin1011110110001…
…1100001011111
310110111112212000
42331203201133
5100210100334
64533013343
71142235621
oct275434137
9113445760
1049690719
112605a411
1214784253
13a3aa6c0
146856c11
154568299
hex2f6385f

49690719 has 32 divisors (see below), whose sum is σ = 83462400. Its totient is φ = 28965600.

The previous prime is 49690679. The next prime is 49690723. The reversal of 49690719 is 91709694.

49690719 is a `hidden beast` number, since 496 + 90 + 71 + 9 = 666.

It is not a de Polignac number, because 49690719 - 27 = 49690591 is a prime.

It is a super-3 number, since 3×496907193 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49690819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2944 + ... + 10394.

It is an arithmetic number, because the mean of its divisors is an integer number (2608200).

Almost surely, 249690719 is an apocalyptic number.

49690719 is a deficient number, since it is larger than the sum of its proper divisors (33771681).

49690719 is a wasteful number, since it uses less digits than its factorization.

49690719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7492 (or 7486 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 49690719 is about 7049.1644185676. The cubic root of 49690719 is about 367.6419776287.

The spelling of 49690719 in words is "forty-nine million, six hundred ninety thousand, seven hundred nineteen".

Divisors: 1 3 9 13 19 27 39 57 117 171 247 351 513 741 2223 6669 7451 22353 67059 96863 141569 201177 290589 424707 871767 1274121 1840397 2615301 3822363 5521191 16563573 49690719