Search a number
-
+
2428719 = 36311283
BaseRepresentation
bin1001010000111100101111
311120101120120
421100330233
51110204334
6124020023
726433546
oct11207457
94511516
102428719
111409807
12991613
13670617
1447315d
1532e949
hex250f2f

2428719 has 8 divisors (see below), whose sum is σ = 3245952. Its totient is φ = 1615320.

The previous prime is 2428711. The next prime is 2428729. The reversal of 2428719 is 9178242.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2428719 - 23 = 2428711 is a prime.

It is a super-2 number, since 2×24287192 = 11797351961922, which contains 22 as substring.

2428719 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2428719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2428711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1252 + ... + 2534.

It is an arithmetic number, because the mean of its divisors is an integer number (405744).

22428719 is an apocalyptic number.

2428719 is a deficient number, since it is larger than the sum of its proper divisors (817233).

2428719 is a wasteful number, since it uses less digits than its factorization.

2428719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917.

The product of its digits is 8064, while the sum is 33.

The square root of 2428719 is about 1558.4347917061. The cubic root of 2428719 is about 134.4185140489.

The spelling of 2428719 in words is "two million, four hundred twenty-eight thousand, seven hundred nineteen".

Divisors: 1 3 631 1283 1893 3849 809573 2428719