Search a number
-
+
49471900 = 2252494719
BaseRepresentation
bin1011110010111…
…0000110011100
310110002102200121
42330232012130
5100131100100
64524204324
71140334642
oct274560634
9113072617
1049471900
1125a1aa75
12146996a4
13a331c1a
1467db192
15452351a
hex2f2e19c

49471900 has 18 divisors (see below), whose sum is σ = 107354240. Its totient is φ = 19788720.

The previous prime is 49471897. The next prime is 49471909. The reversal of 49471900 is 917494.

It is a super-2 number, since 2×494719002 = 4894937779220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49471909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247260 + ... + 247459.

Almost surely, 249471900 is an apocalyptic number.

It is an amenable number.

49471900 is an abundant number, since it is smaller than the sum of its proper divisors (57882340).

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

49471900 is a wasteful number, since it uses less digits than its factorization.

49471900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494733 (or 494726 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 49471900 is about 7033.6263762017. The cubic root of 49471900 is about 367.1015317981.

The spelling of 49471900 in words is "forty-nine million, four hundred seventy-one thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 494719 989438 1978876 2473595 4947190 9894380 12367975 24735950 49471900