Search a number
-
+
2380581144 = 2333231792677
BaseRepresentation
bin1000110111100100…
…1100100100011000
320010220111001102000
42031321030210120
514333412044034
61032120041000
7112664414544
oct21571144430
96126431360
102380581144
111011859937
12565303160
132bc279bc6
14188246a24
15ddedc599
hex8de4c918

2380581144 has 128 divisors (see below), whose sum is σ = 6941376000. Its totient is φ = 754503552.

The previous prime is 2380581113. The next prime is 2380581149. The reversal of 2380581144 is 4411850832.

2380581144 is a `hidden beast` number, since 2 + 38 + 0 + 581 + 1 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2380581099 and 2380581108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2380581149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 887934 + ... + 890610.

It is an arithmetic number, because the mean of its divisors is an integer number (54229500).

Almost surely, 22380581144 is an apocalyptic number.

2380581144 is a gapful number since it is divisible by the number (24) 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 2380581144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3470688000).

2380581144 is an abundant number, since it is smaller than the sum of its proper divisors (4560794856).

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

2380581144 is a wasteful number, since it uses less digits than its factorization.

2380581144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894 (or 2884 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 2380581144 is about 48791.1994523603. The cubic root of 2380581144 is about 1335.2451109086.

The spelling of 2380581144 in words is "two billion, three hundred eighty million, five hundred eighty-one thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 23 24 27 36 46 54 69 72 92 108 138 179 184 207 216 276 358 414 537 552 621 716 828 1074 1242 1432 1611 1656 2148 2484 2677 3222 4117 4296 4833 4968 5354 6444 8031 8234 9666 10708 12351 12888 16062 16468 19332 21416 24093 24702 32124 32936 37053 38664 48186 49404 61571 64248 72279 74106 96372 98808 111159 123142 144558 148212 184713 192744 222318 246284 289116 296424 369426 444636 479183 492568 554139 578232 738852 889272 958366 1108278 1437549 1477704 1662417 1916732 2216556 2875098 3324834 3833464 4312647 4433112 5750196 6649668 8625294 11021209 11500392 12937941 13299336 17250588 22042418 25875882 33063627 34501176 44084836 51751764 66127254 88169672 99190881 103503528 132254508 198381762 264509016 297572643 396763524 595145286 793527048 1190290572 2380581144