Search a number
-
+
2478246 = 231921739
BaseRepresentation
bin1001011101000010100110
311122220111220
421131002212
51113300441
6125041210
730031131
oct11350246
94586456
102478246
111442a41
129b6206
1368a024
14487218
1533e466
hex25d0a6

2478246 has 16 divisors (see below), whose sum is σ = 5217600. Its totient is φ = 782568.

The previous prime is 2478241. The next prime is 2478257. The reversal of 2478246 is 6428742.

It is a super-2 number, since 2×24782462 = 12283406473032, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478241) 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, 10756 + ... + 10983.

It is an arithmetic number, because the mean of its divisors is an integer number (326100).

22478246 is an apocalyptic number.

2478246 is an abundant number, since it is smaller than the sum of its proper divisors (2739354).

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

2478246 is a wasteful number, since it uses less digits than its factorization.

2478246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21763.

The product of its digits is 21504, while the sum is 33.

The square root of 2478246 is about 1574.2445807434. The cubic root of 2478246 is about 135.3260705063.

The spelling of 2478246 in words is "two million, four hundred seventy-eight thousand, two hundred forty-six".

Divisors: 1 2 3 6 19 38 57 114 21739 43478 65217 130434 413041 826082 1239123 2478246