Search a number
-
+
2542360040 = 2351121393779
BaseRepresentation
bin1001011110001001…
…0101010111101000
320120011220021022222
42113202111113220
520201321010130
61100135333212
7120000463253
oct22742252750
96504807288
102542360040
111095106800
125ab521208
1331694126c
141a191a09a
15ed2e6ce5
hex978955e8

2542360040 has 96 divisors (see below), whose sum is σ = 6334524000. Its totient is φ = 917600640.

The previous prime is 2542360019. The next prime is 2542360043. The reversal of 2542360040 is 400632452.

2542360040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2542359991 and 2542360009.

It is not an unprimeable number, because it can be changed into a prime (2542360043) 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, 670871 + ... + 674649.

It is an arithmetic number, because the mean of its divisors is an integer number (65984625).

Almost surely, 22542360040 is an apocalyptic number.

2542360040 is a gapful number since it is divisible by the number (20) 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 2542360040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3167262000).

2542360040 is an abundant number, since it is smaller than the sum of its proper divisors (3792163960).

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

2542360040 is a wasteful number, since it uses less digits than its factorization.

2542360040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951 (or 3936 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2542360040 is about 50421.8210698503. The cubic root of 2542360040 is about 1364.8314389753.

Adding to 2542360040 its reverse (400632452), we get a palindrome (2942992492).

The spelling of 2542360040 in words is "two billion, five hundred forty-two million, three hundred sixty thousand, forty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 121 139 220 242 278 440 484 556 605 695 968 1112 1210 1390 1529 2420 2780 3058 3779 4840 5560 6116 7558 7645 12232 15116 15290 16819 18895 30232 30580 33638 37790 41569 61160 67276 75580 83138 84095 134552 151160 166276 168190 207845 332552 336380 415690 457259 525281 672760 831380 914518 1050562 1662760 1829036 2101124 2286295 2626405 3658072 4202248 4572590 5252810 5778091 9145180 10505620 11556182 18290360 21011240 23112364 28890455 46224728 57780910 63559001 115561820 127118002 231123640 254236004 317795005 508472008 635590010 1271180020 2542360040