Search a number
-
+
278052 = 223172947
BaseRepresentation
bin1000011111000100100
3112010102020
41003320210
532344202
65543140
72235435
oct1037044
9463366
10278052
1117a9a5
12114ab0
1399738
147348c
15575bc
hex43e24

278052 has 48 divisors (see below), whose sum is σ = 725760. Its totient is φ = 82432.

The previous prime is 278051. The next prime is 278063. The reversal of 278052 is 250872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278051) 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, 5893 + ... + 5939.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2278052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 278052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362880).

278052 is an abundant number, since it is smaller than the sum of its proper divisors (447708).

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

278052 is a wasteful number, since it uses less digits than its factorization.

278052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 278052 is about 527.3063625635. The cubic root of 278052 is about 65.2692578321.

The spelling of 278052 in words is "two hundred seventy-eight thousand, fifty-two".

Divisors: 1 2 3 4 6 12 17 29 34 47 51 58 68 87 94 102 116 141 174 188 204 282 348 493 564 799 986 1363 1479 1598 1972 2397 2726 2958 3196 4089 4794 5452 5916 8178 9588 16356 23171 46342 69513 92684 139026 278052