[go: up one dir, main page]

Search a number
-
+
2428572640 = 255131916113
BaseRepresentation
bin1001000011000001…
…0001001111100000
320021020210021100211
42100300101033200
514433203311030
61040552423504
7114116345464
oct22060211740
96236707324
102428572640
11103695862a
125793a7b94
132c91b1040
1419077a4a4
15e331c12a
hex90c113e0

2428572640 has 96 divisors (see below), whose sum is σ = 6212215296. Its totient is φ = 891863040.

The previous prime is 2428572611. The next prime is 2428572659. The reversal of 2428572640 is 462758242.

It is a super-3 number, since 3×24285726403 (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2428572593 and 2428572602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394224 + ... + 400336.

It is an arithmetic number, because the mean of its divisors is an integer number (64710576).

Almost surely, 22428572640 is an apocalyptic number.

2428572640 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 2428572640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3106107648).

2428572640 is an abundant number, since it is smaller than the sum of its proper divisors (3783642656).

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

2428572640 is a wasteful number, since it uses less digits than its factorization.

2428572640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332 (or 6324 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 2428572640 is about 49280.5503216025. The cubic root of 2428572640 is about 1344.1581387524.

The spelling of 2428572640 in words is "two billion, four hundred twenty-eight million, five hundred seventy-two thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 191 208 260 382 416 520 764 955 1040 1528 1910 2080 2483 3056 3820 4966 6112 6113 7640 9932 12226 12415 15280 19864 24452 24830 30560 30565 39728 48904 49660 61130 79456 79469 97808 99320 122260 158938 195616 198640 244520 317876 397280 397345 489040 635752 794690 978080 1167583 1271504 1589380 2335166 2543008 3178760 4670332 5837915 6357520 9340664 11675830 12715040 15178579 18681328 23351660 30357158 37362656 46703320 60714316 75892895 93406640 121428632 151785790 186813280 242857264 303571580 485714528 607143160 1214286320 2428572640