Search a number
-
+
2397989748 = 2237113183717
BaseRepresentation
bin1000111011101110…
…0110101101110100
320012010020111112010
42032323212231310
514402341132443
61033541124220
7113265401520
oct21673465564
96163214463
102397989748
11102066a210
1256b0b9670
132c2a6395b
1418a698d80
15e07ca733
hex8eee6b74

2397989748 has 96 divisors (see below), whose sum is σ = 7201087488. Its totient is φ = 602755200.

The previous prime is 2397989747. The next prime is 2397989749. The reversal of 2397989748 is 8479897932.

It is an interprime number because it is at equal distance from previous prime (2397989747) and next prime (2397989749).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2397989747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13215 + ... + 70502.

It is an arithmetic number, because the mean of its divisors is an integer number (75011328).

Almost surely, 22397989748 is an apocalyptic number.

2397989748 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 2397989748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3600543744).

2397989748 is an abundant number, since it is smaller than the sum of its proper divisors (4803097740).

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

2397989748 is a wasteful number, since it uses less digits than its factorization.

2397989748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83773 (or 83771 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 66.

The square root of 2397989748 is about 48969.2735090077. The cubic root of 2397989748 is about 1338.4919821556.

The spelling of 2397989748 in words is "two billion, three hundred ninety-seven million, nine hundred eighty-nine thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 31 33 42 44 62 66 77 84 93 124 132 154 186 217 231 308 341 372 434 462 651 682 868 924 1023 1302 1364 2046 2387 2604 4092 4774 7161 9548 14322 28644 83717 167434 251151 334868 502302 586019 920887 1004604 1172038 1758057 1841774 2344076 2595227 2762661 3516114 3683548 5190454 5525322 6446209 7032228 7785681 10380908 11050644 12892418 15571362 18166589 19338627 25784836 28547497 31142724 36333178 38677254 54499767 57094994 72666356 77354508 85642491 108999534 114189988 171284982 199832479 217999068 342569964 399664958 599497437 799329916 1198994874 2397989748