Search a number
-
+
14642019 = 33777471
BaseRepresentation
bin110111110110…
…101101100011
31000112220002000
4313312231203
512222021034
61241455043
7235312050
oct67665543
930486060
1014642019
1182a0847
124aa1483
133058722
141d32027
151443599
hexdf6b63

14642019 has 16 divisors (see below), whose sum is σ = 24791040. Its totient is φ = 8366760.

The previous prime is 14642009. The next prime is 14642029. The reversal of 14642019 is 91024641.

14642019 is a `hidden beast` number, since 1 + 4 + 642 + 0 + 19 = 666.

It is an interprime number because it is at equal distance from previous prime (14642009) and next prime (14642029).

It is not a de Polignac number, because 14642019 - 29 = 14641507 is a prime.

It is a super-2 number, since 2×146420192 = 428777440792722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 14641983 and 14642001.

It is not an unprimeable number, because it can be changed into a prime (14642009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38547 + ... + 38924.

It is an arithmetic number, because the mean of its divisors is an integer number (1549440).

Almost surely, 214642019 is an apocalyptic number.

14642019 is a deficient number, since it is larger than the sum of its proper divisors (10149021).

14642019 is an equidigital number, since it uses as much as digits as its factorization.

14642019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77487 (or 77481 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 14642019 is about 3826.4891218975. The cubic root of 14642019 is about 244.6434853524.

The spelling of 14642019 in words is "fourteen million, six hundred forty-two thousand, nineteen".

Divisors: 1 3 7 9 21 27 63 189 77471 232413 542297 697239 1626891 2091717 4880673 14642019