Search a number
-
+
49811445 = 325171923149
BaseRepresentation
bin1011111000000…
…0111111110101
310110201200110100
42332000333311
5100222431240
64535344313
71143250605
oct276007765
9113650410
1049811445
1126132092
1214822099
13a420638
146888c05
15458de30
hex2f80ff5

49811445 has 96 divisors (see below), whose sum is σ = 101088000. Its totient is φ = 22505472.

The previous prime is 49811429. The next prime is 49811449. The reversal of 49811445 is 54411894.

It is not a de Polignac number, because 49811445 - 24 = 49811429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49811449) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 334231 + ... + 334379.

It is an arithmetic number, because the mean of its divisors is an integer number (1053000).

Almost surely, 249811445 is an apocalyptic number.

49811445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49811445 is an abundant number, since it is smaller than the sum of its proper divisors (51276555).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49811445 is a wasteful number, since it uses less digits than its factorization.

49811445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 216 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 49811445 is about 7057.7223663162. The cubic root of 49811445 is about 367.9394714760.

The spelling of 49811445 in words is "forty-nine million, eight hundred eleven thousand, four hundred forty-five".

Divisors: 1 3 5 9 15 17 19 23 45 51 57 69 85 95 115 149 153 171 207 255 285 323 345 391 437 447 745 765 855 969 1035 1173 1311 1341 1615 1955 2185 2235 2533 2831 2907 3427 3519 3933 4845 5865 6555 6705 7429 7599 8493 10281 12665 14155 14535 17135 17595 19665 22287 22797 25479 30843 37145 37995 42465 48127 51405 58259 65113 66861 111435 113985 127395 144381 154215 174777 195339 240635 291295 325565 334305 433143 524331 586017 721905 873885 976695 1106921 2165715 2621655 2930085 3320763 5534605 9962289 16603815 49811445