Search a number
-
+
49019886 = 23219143333
BaseRepresentation
bin1011101011111…
…1101111101110
310102020110122100
42322333233232
5100022114021
64510355530
71133443056
oct272775756
9112213570
1049019886
1125741403
12144bbba6
13a204266
146720566
154484626
hex2ebfbee

49019886 has 24 divisors (see below), whose sum is σ = 111800520. Its totient is φ = 15479856.

The previous prime is 49019881. The next prime is 49019903. The reversal of 49019886 is 68891094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49019881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71325 + ... + 72008.

It is an arithmetic number, because the mean of its divisors is an integer number (4658355).

Almost surely, 249019886 is an apocalyptic number.

49019886 is an abundant number, since it is smaller than the sum of its proper divisors (62780634).

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

49019886 is a wasteful number, since it uses less digits than its factorization.

49019886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143360 (or 143357 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 49019886 is about 7001.4202844851. The cubic root of 49019886 is about 365.9800669965.

The spelling of 49019886 in words is "forty-nine million, nineteen thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 143333 286666 429999 859998 1289997 2579994 2723327 5446654 8169981 16339962 24509943 49019886