Search a number
-
+
4989719 = 72791289
BaseRepresentation
bin10011000010001100010111
3100101111121102
4103002030113
52234132334
6254540315
760261200
oct23021427
910344542
104989719
1128a8939
12180769b
1310591c7
1493c5a7
1568867e
hex4c2317

4989719 has 12 divisors (see below), whose sum is σ = 5882400. Its totient is φ = 4219488.

The previous prime is 4989713. The next prime is 4989757. The reversal of 4989719 is 9179894.

It is not a de Polignac number, because 4989719 - 28 = 4989463 is a prime.

It is a super-2 number, since 2×49897192 = 49794591397922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989713) 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, 3227 + ... + 4515.

It is an arithmetic number, because the mean of its divisors is an integer number (490200).

Almost surely, 24989719 is an apocalyptic number.

4989719 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

4989719 is a deficient number, since it is larger than the sum of its proper divisors (892681).

4989719 is a wasteful number, since it uses less digits than its factorization.

4989719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 1375 counting only the distinct ones).

The product of its digits is 163296, while the sum is 47.

The square root of 4989719 is about 2233.7678930453. The cubic root of 4989719 is about 170.8803124943.

The spelling of 4989719 in words is "four million, nine hundred eighty-nine thousand, seven hundred nineteen".

Divisors: 1 7 49 79 553 1289 3871 9023 63161 101831 712817 4989719