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2387868 = 2237231131
BaseRepresentation
bin1001000110111110011100
311111022112120
421012332130
51102402433
6123102540
726203500
oct11067634
94438476
102387868
11139104a
12971a50
13657b52
14462300
153227b3
hex246f9c

2387868 has 72 divisors (see below), whose sum is σ = 6741504. Its totient is φ = 655200.

The previous prime is 2387867. The next prime is 2387873. The reversal of 2387868 is 8687832.

2387868 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2387867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18163 + ... + 18293.

It is an arithmetic number, because the mean of its divisors is an integer number (93632).

22387868 is an apocalyptic number.

2387868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2387868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3370752).

2387868 is an abundant number, since it is smaller than the sum of its proper divisors (4353636).

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

2387868 is a wasteful number, since it uses less digits than its factorization.

2387868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 174 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 2387868 is about 1545.2727914514. The cubic root of 2387868 is about 133.6606099069.

The spelling of 2387868 in words is "two million, three hundred eighty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 42 49 62 84 93 98 124 131 147 186 196 217 262 294 372 393 434 524 588 651 786 868 917 1302 1519 1572 1834 2604 2751 3038 3668 4061 4557 5502 6076 6419 8122 9114 11004 12183 12838 16244 18228 19257 24366 25676 28427 38514 48732 56854 77028 85281 113708 170562 198989 341124 397978 596967 795956 1193934 2387868